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Can you use an ordinary millivoltmeter instead of electronic millivoltmeter or potentiometer to measure the inner probe voltage why?
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Why potentiometer method is an accurate method for measuring potential difference?
Say 'emf' instead potential difference. Because while measuring the same no current is drawn and just balancing the potential across with the potential drop on the balancing length of the potentiometer wire. While balancing the galvanometer shows null deflection. So no current flows through the galvanometer. A perfect balance with the potential difference (EMF) of a cell with potential drop across that particular length.
How do you get 12V DC to 9V DC with a pot and if it can be done what value pot?
The answer is a very-qualified "yes." Assuming that you buffer the output (see below), any value potentiometer can be used to get 9V from 12V. Assuming a round, linear taper pot (see below), you will get 9V at the tap when you turn the knob approximately 1/4 of the way from maximum output. A potentiometer (or "pot") is a 3 terminal device consisting of two "fixed contacts" at the ends of a (typically) wire-wound resistor and one "wiper contact" or "tap" that can be moved along the resistor. If you apply a 12V source to the fixed contacts of a potentiometer, you will be able to adjust the tap to any voltage between 12V and 0V. In many applications, the tap serves as a reference value. This means that you don't load the tap directly but instead buffer it using an amplification stage to drive your load. If you apply the load directly to the tap, it will change the voltage value and generally make your design more complicated. In cases where the load is tied directly to the tap, the pot is often wired differently in a configuration called a rheostat. When you choose your potentiometer, there are a few parameters you want to pay attention to: 1. The value of the potentiometer (e.g. 1K ohms) is the value of the resistance between the fixed contacts when the tap is left open. This value is important because it usually determines the amount of current drawn from the source. If you're replacing a potentiometer that has burned out, make sure to match this value with the one you're removing. 2. The power rating of the potentiometer (e.g. 0.5W) is how much power the potentiometer can dissipate safely. Make sure that the power rating is high enough for your application or it will burn out. 3. The taper of the potentiometer (e.g. linear or logarithmic) describes how the position of the tap changes with travel. Audio applications typically use a logarithmic potentiometer because our ears distinguish sound intensity logarithmically (something that sounds "twice as loud" is probably causing several powers of ten times as much energy to strike your eardrum). If you get the wrong taper, adjusting the potentiometer will feel "wrong" and either the change will be too great or not noticeable for most of the travel.
What is the purpose of a potentiometer?
A potentiometer is a type of position sensor. They are used to measure displacement in any direction. Linear potentiometers linearly measure displacement and rotary potentiometers measure rotational displacement. Also known as a Potmeter or Pot, it consists of a resistive element called the track and a sliding contact called the wiper internally where end terminals are attached to the resistive element. They are used to accurately measure voltage and help achieve a variable voltage from a fixed-voltage source. Common Examples of Potentiometers are: Measuring Position on a gaming joystick Controlling audio equipment using volume controls
Who might buy your microchips?
If you salvaged it from broken electronics or stuff, you could sell it back from the company you stripped the electronic from (For Example DELL, Toshiba, Apple, and many more. Or if you just stripped some random mircochips, then i guess put it on the market, see if any companies/Stores who would like to buy them (Warning: They will buy it cheap) Hope This Helps
What is engine mapping?
Engines today tends to have a lot of electronics in them. Instead of needles and throttles, there are injectors, pumps and sensors, all hooked up to an electronic brain. The brain the decides when to fire the spark plugs, how much fuel to feed ASO. Mapping an engine means finding out and setting the values to get the engine to run as good as possible.
Why you use mercury lamp instead of ordinary light or sodium lamp in constant deviation?
we use mercury lamp instead of ordinary lamp because ordinary lamp has many wavelengths when mercury lamp has single wavelength so in constant deviation we use only mercury lamp.
How would it be possible to directly alter an electrical signal the way a potentiometer does by using the intensity of another electrical signal instead of manualy rotating a dial?
The easiest way is by using an FET
Can you measure the emf of a cell with a voltmeter?
you can, but you will not get accurate answer as voltmeter consumes some current. so, potentiometer is used instead to measure emf ---- the potentiometer must be set to the expected emf from the cell before you put the zero detector in circuit if its set too high it will charge the cell too low it will load the cell perhaps if you dont know the voltage of the cell before you measure it you should get a hi impedance voltmeter(electrometer) to set the potentiometer as close as you can manage before you connect the zero detector
Why aree ordinary plane mirrors coated in the back instead of in front?
To protect the coating.
What is electronic timer?
A timer implemented with electronic components instead of mechanical ones. Most electronic timers are also digital, not analog (but if a display is not required a few are analog to reduce costs).
What may the students use instead of books after fifty years?
Electronic Devises
Which other word can be used instead of regular?
The word is "ordinary" ! Let's try it out in a sentence: "Dinie Slothouber is just an ordinary lady, in love with a regular guy, Mitch Longley."
What is the value behind sending venues electronic rfp instead of contacting them through phones etc?
The value behind sending venues an electronic RFP instead of calling them on the phone is because an electronic RFP leaves a trail. You will have something in writing that you can look over later or pull out if there is a disagreement about something later. You do not have that with a telephone call.
How has Monopoly been modified from its original form?
Different versions have been introduced such as the simpsons monopoly and the indian monopoly where rupees were used instead of pounds or dollars. Also the new electronic version has credit cards instead of money where there is an electronic bank
Why companies concetrate on revenue models and the analysis of business process instead of business models when they undertake electronic commerce initiatives?
why do companies concentrate on revenue models and analysis of business processes instead of business models when they undertake electronic commerce initiatives
What should be the experties for a computer engineer?
Electronic engineering (or electrical engineering), software design, and hardware-software integration instead of only software engineering or electronic engineering.
Why is it easier to use an electronic spreadsheet instead of pen and paper?
The spreadsheet automatically does all the math for you.
