How does a watt-hour meter work?

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There are a couple of kinds of watt-hour meters: one is an electromechanical type (the one with the spinning wheel), and the other is a solid-state type. The solid-state types generally use a current transformer to measure the current produced in the current-carrying conductors, which means that the current carrying conductors need not be connected to the actual measuring device.) The electromechanical type uses an aluminum disc acted upon by two coils. One coil is positioned in such a way as to produce a magnetic flux in proportion to the voltage on the disc, and the other coil produces a magnetic flux proportional to the current. This causes the disc to rotate at a speed proportional to the power (voltage times current) being used. A permanent magnet is also installed in such a way as to exert an opposing force in proportion to the rotating speed of the disc. This causes the disc to slow down and stop when energy stops being used. The aluminum disc is also attached to a worm gear which drives the register.
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How do remote electricity meters work?

\n. \n Answer \n. \nI would like to give you an answer this question but, more information is needed. Is this about your meter readings being sent over the phone/cable connection? In all my years in the business I have never heard of a "remote electricity meter".\n. \n. \n Answer \n. \nThere are wired and wireless means for monitoring electrical meters. The wireless kind use a coded radio transponder to answer a query from the reader in a passing vehicle, and send a digitized reading. The wired kind operate with communication codes right across the power lines using relatively high frequencies. In 2005 there were over 25 million Italian homes providing remote readings for centralized monitoring of electric consumption. \n. \nStandards are also being developed for "intelligent" appliances that can be centrally controlled, and for transmission of internet data using power lines. Some of this technology is based on patents from the 1960s and 1970s for communicating digital information across power lines. E.g., Haberly, 1970 (filed 1966), USP 3,509,537.

What does a watt meter do?

A watt is the electric unit of power. Amperage x voltage = watt. 746 watts is one horsepower. A wattmeter measures power. Answer A wattmeter measures the voltage applied to a circuit, the resulting current , and the cosine of the angle between them , allowing it to indicate the true power of a circuit, in watts, regardless of the nature (resistive, inductive, or capacitive) of its load. Incidentally, the watt is the SI unit for power, it is not the 'electric unit' of power, as there is no such thing as 'electric power'.

Working of energy meter?

An electric meter or more commonly used term, the electricity meter is meant for measuring the total electrical energy consumed in a house, shop, offices etc and the units of measurements are usually kilowatt-hour (KWh). The electric meter working involves computing the integral over time of the electrical power in Watts consumed on the power network delivered to a particular connection. This electrical power is measured by performing the product of the line current in Amps and the line voltage in Volts. Let us know have a look at the working of an electric meter. The electric meters generally comprises of two parts -- a transducer to convert the power into a mechanical or electrical signal, and a counter to integrate and display the value of the total energy that has passed through the meter. One of the easiest and the simplest ways to measure the line current and voltage for single phase electronic meters are line current and line voltage. In multi-phase meters (many homes have 2 or 3 phases of electricity supply, providing more power), voltage and current measurements have to be electrically isolated for each phase and transformers are used instead of shunts for current sensing. Let us have a look at the working of an electric meter which is meant for residential connections. Usually domestic electric meter is enclosed in a glass case in which contains a revolving disk which in turn rotates a series of numbers or dials. When the electric current passes through the meter, the disk rotates to measure the exact amount of kilowatts used. The speed of rotation varies depending on how much electricity you are using in your house for particular device such as running a washing machine, microwave and water heater etc. It is important to note that different electric appliance uses different amount of electricity for its operating. More the utilization of electric power, the faster the speed of rotation of disks. The electric meter working in case of watt hour meters is explained here. The electromechanical type meter has the spinning wheel in it and the other type of meter is a solid state type. The solid-state types make use of a current transformer to measure the current produced in the current-carrying conductors, which means that the current carrying conductors need not be connected to the actual measuring device. The electromechanical type uses an aluminum disc acted upon by two coils. One coil is positioned in such a way as to produce a magnetic flux in proportion to the voltage on the disc, and the other coil produces magnetic flux proportional to the current.

How does a Newton Meter work?

A Newton meter is a device that measures force. The simple ones that you typically see in high school laboratoriesuse a spring that stretches or is compressed as a force is applied.They have an indicator needle that shows how much force is applied.See link below for a picture. More sophisticated ones typically use load cells to more accuratelymeasure the force. Some people believe they were invented by Isaac Newton but this isnot the case. The SI unit of force is called a Newton in his honor.Since these meters measure force they are named after this unit. There is sometimes confusion with a Newton Meter (note differentspelling) which is the SI unit of torque. (Turning force.)

How a analog electrical meter works?

Note: Most homes (at least in north america) now use digital electric meters (SMART meters) to measure household electricity use. Analog electric or Kilowatt hour meters pick up EMF ( EMF = Electro Magnetic Field ) fields given off by current passing through the conductors (The EMF strenth is proportionate to the current) and uses it to generate a turning motion, this turning motion is reduced using a series of gears to turn the dials, these dials record the kilowatt hours passed through the meter. The electric utility would send someone to read the meter every few weeks to bill you on your usage. See related links below.

What are the 5Cs of credit?

5 C's of Credit refer to the factors that lenders of money evaluate to determine credit worthiness of a borrower. They are the following:. 1. Borrower's CHARACTER. 2. Borrower's CAPACITY to repay the loan. 3. COLLATERAL or security/guarantee for the obligation. 4. Borrower's CAPITAL (business networth) or downpayment for the loan. 5. Present and anticipated CONDITIONS of the borrower, collateral, business, and the industry or economy in general

How does a volt meter work?

A voltmeter works by adding a parallel branch with high impedence across two points. Based on the amount of current (measured by electronic components within the meter) that flows through the parallel branch, and the known resistance of that branch, the voltage can be calculated via Ohm's Law. The idea is to have the impedance be very high compared to the two points, so that the amount of current running through the meter will be very small compared to the current between the two points.

How do you work out the square meter of a room?

length times width Measure the length and the width in metres and then multiply both

What is the working principle of a pH meter?

When you place the PH electrode in a PH unknown solution you'll find that an electrical potential difference is produced. THIS IS DUE TO: Difference of H+ ion concentration between the test solution and the glass bulb electrode (part of PH electrode that is sensitive to H+ ion concentration) After that the potential difference of the reference electrode (another part of PH electrode) is measured and compared to the potential of the glass bulb electrode by means of a meter. results are read from 0-14 The porous glass of the electrode prevents the H+ ions to diffuse from both sides, but allows the exchange of Na+ ions (contained in the silicates of the glass) with the external solution, for keeping the continuity ot this electrical system. The H+ activity difference between the solution inside the electrode and the external one is measured as electric potential difference, then, converted in pH units (0-14) by the instrument.

How do dissolved oxygen meters work?

A dissolved oxygen meter measures the oxygen pressure in water. Ananode is covered with water to halt the oxygen probe in the DO togive a reading.

How does the metering valve work?

A metering valve works by managing the flow of low to highviscosity fluids or gases in heavy equipment. Commonly used typesinclude fuel metering valves and brake metering valves.

How does a force meter work?

a force or newton meter works by using a moment arm of a exact measurement. the amount of force can be calculated by observing the movement of the arm. :) hope i helped :)

How pH meter works?

pH effectively measures how many hydrogen ions there are in volumeof water. A pH meter uses litmus paper to measure the ions.

How do digital electric meters work?

A DIGITAL electric meter when measuring voltage uses an analog to digital converter (ADC) to measure the input voltage and convert it to a digital representation. The numeric value is sent to a circuit that integrates the data and formats it for the display system where a human or other system can read the voltage indicated. This is a very simple explanation but it does get the point across.

How electronic energy meter works?

By Using CT and PT, The RMS Current, RMS Voltage, True Power are measured by using Sample and Hold Circuits and converts into ADC then using Microcontroller or Microprocessor to calculate the Real values.

Amp meters how do they work?

An digital amp meter really measures the voltage (E) across a known resistance (R) and reads out in amps (I). Ohms Law: I=E/R

What is a light meter and how does it work?

Light meters, ,more properly Photometers- and photo in both senses- light and photography, are highly useful devices. they combine the functions of a circular slide-rule and an analog light meter proper. The selenium types use photoelectric cells of the direct, or photo-voltaic type- these generate electricity in response to available light ( do not require external batteries_ the Cadmiums Sulfide- or CDS light meters merely change the resistance when light hits them and do require outside current to function- small batteries- but they can fail. As there are some environmental hazards regarding selenium- other elements- which are useful for photoelectric cells- have been pressed into service including Silicon. One sets up the meter by dialing the small movable dial to the ASA ( American Standards AssN) film speed value- say 400. this is usually at the south end of the case Okay one points the meter towards the target area and reads off in EV ( Exposure values) One turns the outer dial to line up with the needle of the photoelectric meter ( which is brought down with a varied movement of magnets, watch-like mainsprings, and electrical shunts) and then matches this with the shutter speed and F ( focal plane- Okay Focus) stops. So one gets an exposure value of say 60 ( l/60 second) at F 5.6 this is good for an indoor evening exposure available light. ( yes there are separate sections, scales and even meters for Flash use- I needn"t get into this in an introductory lesson on Photometers! The design of these things is intriguing and the electronic and mechanical ( like most old-style instruments is really cool. I advise you to buy one and experiment! It is a survival of the slide-rule principle in the Round, which is unusual, plus the photocell and mechanical link. Oh, and do cover the photocell and/or switch off when not in use, store in dark space.

How do you legally slow down the single watt hour meter?

Reduce the amount of power that you are using in the house. Eg. shut off lights in rooms that you are not using. Turn your thermostat down.

Where can you get a watt meter?

A watt meter is what the power suppliers have on the side of your house to monitor the use of electricity going into your home. These can also be bought at electrical wholesale suppliers. There is a second kind of watt meter that measures in the RF frequencies. It is connected into the coxial cable on the output side of a transmitter. These can be purchased at radio shops that sell amateur radio equipment. Additional Answer Actually, what you have on the side of your house to monitor your use of electricity is an energy meter , not a wattmeter. Wattmeter are used to measure power . Your electricity meter is used to measure energy, expressed in kilowatt hours.

What is the working principle of orifice meter?

An obstruction (orifice) is placed in a pipe filled with fluid. The pressure of the fluid is measured at two different points: 1) just upstream of the orifice and, 2) close to the contraction of the fluid (vena contracta). The difference in these two pressures is known as differential pressure. The differential pressure across an obstruction (orifice) in a pipe of fluid is proportional to the square of the velocity of the fluid. Many factors associated with the pipe, orifice and fluid affect the measurement. Satisfactory measurement requires steady-state, homogeneous, turbulent flowing fluids. Other properties which affect the measurement include: the ratio of pipe diameter to orifice diameter and the density, temperature, compressibility and viscosity of the fluid.

What does 5c stand for?

The Iphone 5C is Iphone 5Colorful 5c can also stand for thenumber 500 ("c" is the Roman numeral for 100) or for 5 degreesCelsius (centigrade) . +++ . "5c" can not stand for any Roman numerals forthree reasons. For a start you do not mix Arabic and Roman numeralslike that - it would be nonsensical. Secondly, the Roman for 100 is capital " C ", but thirdly, in the Romanscale, 5 is V, 50 is L and 500 is D. The ' C ' isalso capital for degrees Celsius / Centigrade.

Working principle of trivector meter?

trivector meters are used to measure kVAh and also kVA of maximum demand.it has a kwh meter and reactive kvah meter in a case with special summator mounted between them.

How do you work out square meters into meters?

If and only if you are working with a square, you get the squareroot of the number

How does a lux meter works?

This may not be all about how it works, but some background is good too. A lux meter is a device for measuring brightness, specifically, the intensity with which the brightness appears to the human eye. This is different than measurements of the actual light energy produced by or reflected from an object or light source. The lux is a unit of measurement of brightness, or more accurately, illuminance. It ultimately derives from the candela , the standard unit of measurement for the power of light. A candela is a fixed amount, roughly equivalent to the brightness of one candle. While the candela is a unit of energy, it has an equivalent unit known as the lumen , which measures the same light in terms of its perception by the human eye. One lumen is equivalent to the light produced in one direction from a light source rated at one candela. The lux takes into account the surface area over which this light is spread, which affects how bright it appears. One lux equals one lumen of light spread across a surface one square meter. A lux meter works by using a photo cell to capture light. The meter then converts this light to an electrical current, and measuring this current allows the device to calculate the lux value of the light it captured. The most common use of this type of meter is in photography and video filming. By measuring the light in luxes, photographers can adjust their shutter speed and depth of field to get the best picture quality. The device can also be very useful for filming outdoor scenes of television programs or movies as it allows adjustments to make sure scenes filmed in different light levels have a consistent brightness on screen. To a very limited extent, it is possible to use a camera as a makeshift lux meter. This works because some cameras measure light and automatically adjust the exposure time appropriately. Using a formula, a photographer can then reverse the calculation and convert the stated exposure time into light levels. This method has several limitations, including the fact that some light is absorbed as it passes through the camera lens, so the calculation must be adjusted accordingly. The method can be useful in situations where a separate meter is impractical, however, such as with delicate objects in a museum that can’t easily be reached without disruption. Another common use of a lux meter is in meeting health and safety regulations. It can be used to check whether a room is bright enough to meet any rules designed to protect workers from suffering damage to their eyesight, for example. The meter takes into account the size of the room in a way that simply measuring the intensity of the light source in lumens would not. Sources: wisegeek

How do you work square meter back to meter?

You don't. Square meter is a unit for area, meter is for length - they're different things.

How does a megohm meter work?

The megohm meter (or megger) passes the 500, 750, 1000 volts to the wire that needs to be checked. According to ohms law R=V/I, the current in the returned voltage is measured and divided by the resistance (inside the meter). So when the current is high (i.e not properly insulated or leaking), the resistance value will drop otherwise resistance will be high.

How works a ampere meter?

An ampere meter, or ammeter, is a low impedance device that measures the current in a circuit. Often, it is a low value resistor in parallel with a sensitive voltmeter. Current flow induces a voltage in the resistor, and the voltmeter measures that voltage. The scale on the voltmeter is calibrated for the particular application. As an example, if the shunt resistor were 0.01 ohms, a current of 10 amperes would induce a voltage of 0.1 volts, which the voltmeter can read.

Working principle of venturi meter?

The differential producing flowmeter or Venturi has a long history of uses in many applications. Due to its simplicity and dependability, the Venturi is among the most common flowmeters. With no moving parts or abrupt flow restrictions, the Venturi can measure fluid flowrates with a minimal total pressure loss. The principle behind the operation of the Venturi flowmeter is the Bernoulli effect. The Venturi measures a fluid's flowrate by reducing the cross sectional flow area in the flow path and generating a pressure difference. After the pressure difference is generated, the fluid is passed through a pressure recovery exit section where up to 80% of the differential pressure generated at the throat is recovered. The pressure differential follows Bernoulli's Equation. Bernoulli's Equation: The Venturi Principle In the illustration above, the fluid, either liquid or gaseous, enters the Venturi at the location with a cross-sectional area A 1 , pressure P 1 , and velocity v 1 . These properties form the potential and kinetic energy of the fluid at one location. Energy is conserved in a closed system, that is, the sum of potential and kinetic energy at one location must equal the sum of the potential and kinetic energy at any another location in the system. If potential energy decreases at one location, the kinetic energy must proportionally increase at that location. The fluid now enters the throat of the Venturi with a new area A 2 , which is smaller than A 1 . In a closed system mass can be neither created nor destroyed (law of conservation of mass, simply, what goes in, must come out), and as such, the volumetric flowrate at area A 1 must equal the volumetric flowrate at area A 2 . If the area at location A 2 is smaller than A 1 , the fluid must travel faster to maintain the same volumetric flowrate. This increase in velocity results in a decrease in pressure which follows Bernoulli's equation. The result: by knowing the pressure and cross-sectional area at two locations, one can calculate the velocity of the fluid. With the velocity of the fluid and its density, one can calculate the flowrate. A Venturi requires two pressure and one temperature measurement to accurately determine flow. The first pressure is measured at the Venturi's upstream location, P 1 . This is used for the density calculation and the high side input to the differential pressure measurement. The Venturi Flowmeter The second pressure is measured at the Venturi's throat, P 2 . This is connected to the low side of the differential pressure gauge to form the DP pressure measurement. The temperature reading is taken several pipe diameters in length upstream of the Venturi so as not to disrupt the uniform flow profile. With proper instrumentation and flow conditioning, a Venturi's flowrate can be reduced to about 10% of its full scale range without adding multiple transducer configurations. This provides a 10 to 1 turn-down in a Venturi's flow range, For example: If a Venturi is designed for a maximum flow of 50 SCFM, approximately 5 SCFM would be the lowest value readable but there are compromises. See Instrumentation for a detailed discussion on instrumenting venturi flowmeters and how to maximize the measurement accuracy. Applications: Installation Requirements for Venturi Flowmeters: 1) 10-20 diameters in length of straight pipe upstream of the Venturi 2) 5 diameters in length of straight pipe downstream of the Venturi 3) Flow conditioning tube before the Venturi, if the flow is non-uniform or swirling Free Flow System This arrangement is probably the most common, allowing the Venturi to be installed at any point within the flowing system. The location is generally selected for installation convenience and best flow conditioning. Flow conditioning is necessary to minimize swirling and non-uniform flow profiles such as patterns created by fittings, regulators, and any other flow affecting devices. Pressure Reducing Flow System A Venturi can be installed at several different locations within a pressure reducing flow system. Each location generally has advantages and disadvantages. In the diagram below, two locations are shown for the Venturi's location. Location A is in the high pressure supply line to the system. Location B is after the pressure regulator has substantially reduced the flowing pressure and density. Because of the higher gas density at location A, the Venturi will have a greater flow range than at the lower pressure location B. However, this greater range comes at the cost of lower signal resolution as compared with location B. This would be similar to measuring the accuracy of a clock by timing either the minute hand or the second hand. Both clock hands carry the same accuracy information, the timing of the clock, but it would be much easier to measure the movement of the second hand versus the movement of the minute hand over a small time period. This is because the second hand has higher resolution, that is, it's easier to see a change in movement of the second hand versus a change in movement of the minute hand. If a greater time range is required, then one would need to measure the minute hand. It is the same with the Venturi's location. Some flow systems may only operate over a relatively small range. In that case, location B would be more advantageous than location A, and a properly sized Venturi at that location would provide the best signal resolution and accuracy. However, if measuring the full flow range of the system is required, then location A is the proper configuration. It is tempting to size a Venturi to measure the full air supply flow range, but, if it is only operated over a small flow range, this wide range comes at the cost of lower signal resolution and lower measurement accuracy. Require the Venturi to measure only the range that you need. Free Standing Inlet System A Venturi can be installed as the inlet component to a flow system. This arrangement is often used as a calibration standard for a CVS (Constant Volume System) flow stand in emissions testing. Venturis used in this application are referred to as SAOs (Smooth Approach Orifice). SAOs have several advantages over LFEs (Laminar Flow Elements), also used in this application. SAOs are calibrated to an accuracy level which is expressed in percent of reading. LFEs are calibrated typically to percent of full scale. This is very advantageous at mid range and lower flow rates, the error being a percent of reading not of full scale. As with Sonic Nozzles, Venturis (SAOs) will retain their original calibration accuracy unless they are physically damaged or abused. The stainless steel or anodized aluminum surface will not erode through normal everyday use with clean air.

How do you read a single phase watt hour meter?

There are many different types of watt-hour meters. They generally count the usage from when they are first installed. Older models use dials for each power of ten, more modern versions use a display that directly reads the kilowatt-hour value.

Why is work described as Newton meters?

One definition of work is "Force acting through distance". The quantity of work is (force) multiplied by (distance through which the force acts). The 'dimension' of work is [Force] multiplied by [Distance]. "Newton" is a unit of force. "Meter" is a unit of distance. When you multiply a force measured in 'pounds', by a distance measured in 'feet', you get the amount of work done, measured in "foot-pounds". When you multiply a force measured in 'tons', by a distance measured in 'miles', you get the amount of work done, measured in "ton-miles". When you multiply a force measured in 'newtons', by a distance measured in 'meters', you get the amount of work done, measured in "newton-meters".

Show how to work out square meters?

Square meters of what? If you want the area in square meters of a rectangle, just multiply the length times the width (both in meters). To get square meters of other figures, other formulae are required.

What is the principle on which LCR meter works?

It uses Impedance technique. Check Out some LCR meter data sheetssuch as Agilent user manual it has a break down on the measurementprinciples or search for books on instrumentation and measurementwhich explain the actual circuit diagram.

How do you work out cubic meter of concrete?

Imagine you have a block of wood that is 1 cubic metre [ 1 cm ]. If you slice that into 10 slices by 100mm thick you will now have 10 square metres of wood. Now try that with concrete. You want to put in a drive-way 10 mtrs long by 2 mtrs wide by 100mm thick, that is 20 sq mtrs by 100mm = 2 cm of concrete.

How does a taut-band meter work?

To overcome the position-sensitive nature of jewel-movement meters,the taut-band movement was developed. In this type of movement, thecoil is suspended in a frame by taut thin metal ribbons. A tensionspring is used to maintain even pressure on these ribbons. As aamgnetic field is created in the coil, the metal bands twist andflex, allowing the coil and needle to move. When the magnetic fieldis removed, the opposition from the bands will move the needle backto the original position.

How do you work out the area in meters squared?

if it's a square or rectangle for instance, convert the length unitto metres and then multiply length by width. if it's a circle, theformula is pi by radius squared

How you work out square meter?

To work out a square measure (characterized by the 2 after the measurement, for example m 2 ) then merely multiply the width by the height when dealing with regular quadrilaterals (e.g. Squares, Rectangles and Parallelograms). For other shapes, use the appropriate formula listed below (in non-algebraic terms for understandability): Area of a Regular Quadrilateral = width * height Area of a Triangle = (base * height) / 2 Area of Trapezium = 2 / (a + b) * height a and b are the labelled and measured top and bottom sides of the Trapezium. Area of a circle = pi * (radius*radius)

How do you work out sq meters of a circle?

You just need to know either the diameter or radius. Make sure thisis in metres. If you have diameter, half this to get radius. Thenuse the formula pi x r x r to get the area in m 2

How car revo meter works?

In newer cars with electronics the engine has a sensor whichpulses every revolution. The computer measures the time between thepulses and outputs a signal to the gauge in the dash. The largerthe signal, the higher up the gauge goes. . In older cars the tachometer receives a similar signal, but frompart of the ignition coil.

How does a tractor hour meter work?

The older cat hour meters that were mechanically driven off of the fuel pump counted RPM hours. The newer ones are an oil pressure switch and clock hour for hour time no matter what the RPM if the engine is running.

How ampere meter works?

Amperes of electrical current is analogous to pressure of water in a water pipe. The higher the "water pressure", the higher the amperage. An Ammeter ("amperage meter") measures "the water pressure" (the pressure of electrical current). I use to teach Electronic Theory to Armature/Ham Radio operators and to computer techs at one company. So I can recite this suff in my sleep. It depends on the kind of Ammeter you are talking about. There is one used for AC/alternating current and another for DC/Direct current. In DC measurements there is one or more resisters inside the meter. Usually precision resisters measuring less than an ohm. The meter measures the voltage drop across that resister and using the formula current(I) equals voltage(E) divided by resistance(R). It calculates current. Again this is for DC measurements This all comes from Ohms law. There are strict current limits for these meters too. For measuring High current you usually have to buy a special meter or a very accurate meter and an expensive & very accurate resister that looks like a copper bar. Also to protect this measurement circuit in the meters there is usually a fuse or the like Also many if not most meters have to be hooked up red to positive and black to negative. There may also be a diode or something to protect the meter from being hooking it up wrong. It will blow the fuse if you hook it up backwards. Warning! When measuring HIGH CURRENT the resisters get very hot rule of thumb the bigger the resister the hotter it gets. For AC current measurement there is a ring on the meter that can open and reconnect around the AC wiring. There it does a similar measurement using an Inductive connection rather than a direct connection. This is the easiest way to measure an inductive load also. Hope this helps.

What is the difference between the watt hour meter and Var hour meter in terms of internal connection and work theory ie When the meter records watt-hour an when the meter records var hours?

Only watts (power) can produce work (energy) because of the phase relationship of the voltage and current in an alternating current, electric power system. With watts, the portion of the current and voltage that are in-phase with each other can do work. Vars, on the other hand are volt-amps reactive, which are out-of-phase with each other. Since Vars cannot do work, their existence in the electric power system is parasitic. The reactive current which flows in a power line, for instance uses a portion of line capacity, and also causes heating (I^2 * R power loss) due to the inherent resistance of the conductors. So, in the construction of a simple electromechanical meter, measuring Watt-hours or Var-hours, the respective current and voltage coils used to drive the rotating disk are situated to produce torque. For a Var Hr meter, the coils are rotated 90 degrees relative to each other to counter the lagging or leading phase shift and thus produce torque.

How do you you work out cubic meters?

If it is a cube or cuboid, multiply length x width x height. if acylinder, pi x r 2 x h. If it is a sphere, 4/3 x pi xr 3 . Remember, you need to multiply 3 lengths, otherwiseyou are talking about area (2) or length (1)

How an clamp meter works?

Ordinary clampmeters used to measure AC currents work on theprinciple of electromagnetic induction caused by the alternatingcurrent flowing in the conductor which reverses direction causing adynamically changing magnetic field. However, in DC conductors, thecurrent flows in a fixed polarity. Consequently, the magnetic fieldaround the conductor is fixed and does not change. Hence, aconventional clamp meter will register no reading. A DC clampmeters works on the principle of Hall Effect which statesthat when a conductor carrying current is placed in a magneticfield, a potential is induced across the conductor, transverse toan electric current in the conductor and a magnetic fieldperpendicular to the current.It is caused as chargecarriers,electrons or holes,experience a force known as Lorentzforce and are pushed to the sides of the conductor. A clampmeter which works on the Hall effect has a sensor known asthe Hall element. The Hall element is subjected to the magneticfield caused by the flow of current to be measured. This causes asmall voltage across the Hall element. This voltage is amplifiedand measured.

How electronic meter works?

Generally electronics meters may be ammeter Or Voltmeter. So for measuring the components Value We use a small small circuits . Ex :- to measuring the value of Resistor we supply voltage acroo it & add a Ammeter to measuring the Current thats why we can find value of resistance using Ohm's Law.

Why do you not add meters when working out volume?

Meter is a linear measure and has one dimension. Volume is a three dimensional measure and has three dimensions. You can add meters to meters but only cubic meters to cubic meters.

What is 5c in milliliters?

5cc? cc means cubic centimetres which is equal to ml, so 5ml. if you mean cl, then that is equal to 50ml

How does an hour meter on a mechanical tach work?

A mechanical tach will register 1 engine hour for every 100,000 revolutions. At 1666.6 rpm it will register 1 hour for every hour run. At 800 rpm it will take two hours of run time to register an hour.. In my opinion this was a more accurate method of measuring engine wear but is rarely used any more.. 10 hours on the tach means your piston went up and down 1 million times..

How do you work out the square meters of a roof?

If the rooftop is flat and shaped like a rectangle ... . -- measure the width of the roof, in meters -- measure the length of the roof, in meters -- multiply (width) x (length) -- The product is the area of the roof in square meters. . If the rooftop is not shaped like a rectangle, or parts of it are sloped, then you must mark it off in several sections, with each section being a rectangle. Then measure and calculate the area of each section as described above, and add them up.

Do skins for iPhone 5 lifeproof work for iPhone 5c lifeproof?

No, the skins won't fit. The iPhone 5 is 123.8 mm (4.87 in) high,58.6 mm (2.31 in) wide and 7.6 mm (0.30 in) high. The iPhone 5c is124.4 mm (4.90 in) high, 59.2 mm (2.33 in) wide and 8.97 mm (0.35in) thick.

Why does my compass not work on my apple i phone 5c?

There may be stray magnetic fields in your house. Take it outside and run the calibration procedure.