Can some body show me Electrical circuit diagram of Molded case circuit breakers?
Circuit breakers do not have circuit diagrams. The breakers have an input where the distribution voltage is applied and an output where the load is applied. If you want to know what is inside a breaker, the electrical terminology to use is "shop drawings" of the specific breaker that you need information on.
Is a plug in a series or parallel circuit?
Every outlet in your house, and everything in your house
that's plugged into an outlet, is in parallel.
the winding would burn....
How do you increase voltage in a generator?
At least to a certain extent, by increasing the field current.
Or
In Real Power Plant they decrease the power factor to increase the voltage.
What is meant by mutual inductance?
Mutual inductance is where two electrically separate coils of wire are either close to each other or share the same core. An alternating current flowing in one of the coils will 'induce' a current to flow in the other coil. For example by using coils wound with wire of the correct length and thickness, a transformer fed by mains electricity can by mutual inductance, produce a lower voltage to power your PC or radio.
CommentMutual inductance occurs when a changing current (a.c. or d.c.) flowing in one coil induces a voltage (not a current!) into a second coil.
Ohms can be found by using these formulas. Ohms = Volts/Amps, Ohms = (Volts (squared))/Watts, Ohms = Watts/(Amps (squared)).
an alternator is essentially a generator that converts the kinetic energy from the combustion engine in your car into electrical energy to recharge your battery. To answer your question about connecting a generator to another generator to create limitless energy there is always a loss of energy during the conversion process usually due to friction. In theory it is possible but there is no pure conversion of one form of energy to another in real world application. There will always be a loss of energy in some form.
Internal Fault means, fault due to winding, insulation, core etc which are inner side of transformer.
External fault means, Fault due to atmosphere Condition where transformer is placed moisture,dust, etc
How can you calculate the current in 40 X 40W tube lights in 230V?
power is = V2/R
so
40x40= (230)2/R
R= 33.25
now
V= IR
where I is current
230= IXR
I= 230/33.25
= 6.9 amp
What is the effect of moisture in the substation grounding?
Soil moisture typically enhances the effect of substation grounding by making the soil more electrically conductive. Soil moisture dissolves minerals, creating an electrolyte, or conductive medium. Substation grounding systems often employ the use of a grounding well, which is a casing that is driven into the aquifer, for this reason.
Why condenser used in tube light?
A tube light uses a condenser which is the old term for a capacitor. It functions as a small battery in a circuit.
What type of pump used for water mist system?
it uses centrifugal pump type to maintain pressure of 120 kg/cm2
Does Ohm's Law state that current equals voltage difference divided by the resistance?
Yes. More concisely, Ohm's Law states that current is voltage divided by resistance. Well, more commonly, it states that voltage is current times resistance, but simple algebra will let you solve for any of the three terms, the third being resistance is voltage divided by current.
AnswerMost definitely not.
Ohm's Law is probably the most misunderstood of all the electrical 'laws'.
Ohm's Law states that 'the current passing along a conductor is directly-proportional to the voltage across the ends of that conductor, providing physical conditions such as temperature remain constant'.
No mention of resistance; no mention of any equation.
For Ohm's Law to apply, 'the ratio of voltage to current must remain constant for variations in voltage'. Those materials for which Ohm's Law applies are called 'linear' or 'ohmic', and there are very few. Those materials and electrical components for which Ohm's Law doesn't apply are called 'non-linear' or 'non-ohmic', and include metals such as tungsten and components such as diodes. In fact MOST materials and devices do not obey Ohm's Law.
The equation, R = E/I, is actually derived from the definition of the ohm, and NOT Ohm's Law.
On a final note, there is no such thing as 'voltage' difference. 'Voltage' is another word for 'potential difference', so you cannot have a 'potential difference difference'!
Why are resistances parallel to short circuits neglected in a circuit?
You can consider a short circuit to be a resistor with R=0 Ohms. It is then clear by the equation for calculation of parallel resistance that the combined resistance of a resistor in parallel to a short circuit is 0.
Consider the following example with R1= 1k Ohms and R2= 0 Ohms:
Rtotal = R1*R2 / (R1+R2) = R1*0 / R1 = 0 Ohms.
Can you do masters in computer engineering after doing bachelors in electrical engineering?
Absolutely.
Is an electrical extension cord the same as a wall outlet?
The extension cord will extend the power outlet from a wall socket. The voltage will be the same at the end of the cord as it is from the socket. Be aware that extension cord may have a limit, as to how much current it can provide. The cord should be thick enough to provide as much power as the outlet can. It will then be properly protected by the circuit's fuse or breaker. A thin cord may get hot if a large consumer is plugged in, unless the cord is protected by it's own fuse at the plug end.
A typical multimeter measures voltage and resistance "in parallel" or current in-line with the circuit.
It all depends on the model. 'Multi' means many different modes. Some have more than others.
Some multimeters can measure current, but require you to alter the lead configuration and plug into different sockets.
If you have the meter set for Current measurement and you put it in parallel instead of series, it will cause a dead short and could damage the meter. (They usually have a fuse inside for protection).
Knowing any two of the three parameters you can calculate the third by Ohm's Law: Voltage = Current x Resistance.
Knowing Current and Voltage you can calculate power as Volts x Amps = Watts for resistance loads.
How do you calculate no of photons in led if given voltage and current?
You can't do that calculation given only that data. It depends more on the design of the LED than its drive levels.
Charge (Q) on the capacitor plate = Capaciitance (C) multiplied by voltage (V), so Q=CV. So if V has a triangular in waveform, then so has Q. Current I is the rate of supply of charge. Q increases linearly for a time and then decreases linearly for an equal time, alternately, and the rate is therefore a positive constant for a while, followed by a negative constant for the same period, repeatedly. So you get an alternating (positive followed by negative, repeatedly) waveform, commonly described as a "square wave".
Surge voltage means sudden big voltage. Surge voltage is of two types lightening surge and switching surge or
in electrical engineering, a voltage rise that endangers the insulation of electric equipment. A correct calculation of voltage surges is of great economic and practical importance in the selection of insulation and of measures for power supply system protection, particularly for voltages above 10kilo-volts(kV). There are two types of voltage surges lightning surges and system generated surges.
Does a ballast use electricity if no bulbs are present?
If you mean the ballast in a fluorescent light fitting where the ballast is wired in series with the tube, the answer is "No". Explanation:
If no tube is in place, the light fitting's circuit is "open" so there is nothing to take any current from the "hot" supply wire and return it to the "neutral" wire.
How to know if the resistor is open and shorted?
I assume that the person asking the question meant "open OR shorted" as these are opposite terms. Most resistors will open when they are damaged. It is very rare to find one that is shorted. To determine if the resistor is open or shorted simply use a multimeter set to measure ohms. Place the leads across the resistor and it should read the resistance value of the resistor. If it measures max range of the meter (some digitals will display "OL") then the resistor is open. If it measures 0 or very close then it is shorted, which as mentioned above, is unlikely.