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When the engine is not running current to operate electrical circuits is supplied by what?
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∙ 11y ago
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When transistors are used in digital circuits they usually operate in what region?
active region
What is the voltage power current and resistance of an electrical heater?
The two most important ratings for an electrical heater are its rated power and its rated voltage, and these will be printed on a 'nameplate' fixed somewhere on the heater (e.g. '3 kW at 230 V').For the heater to operate at its rated power, it must be subject to its rated voltage. In the above example, the heater will only operate at 3 kW if it is supplied with 230 V.If you know the heater's power (P) and its voltage (U), then you can calculate the rated current (I) it will draw from the supply, using the equation: I = P/U.You can also determine its resistance (R), using the equation R = U2/P.
Which of these is needed to operate on an electric motor?
alternating current
How do you calculate the over load and short circuits to use fuses?
By referring to the manufacturer's characteristic curves for the fuse. There are different curves for different types of fuse (e.g. rewirable, cartridge, etc.). Essentially, these curve will tell you how quickly the fuse will operate for any value of overload current.
What are Electrical devices are rated in according to the amount of energy per second that they need to operate?
watts
What hapend when earth is not connected in electrical circuits?
The main purpose of earthing electrical circuits is to provide a low-impedance route back to the substation transformer which, in the event of an earth-fault will allow sufficient fault current to flow in order to operate a circuit's overcurrent protection.
What kind of electricity is used to operate your electrical appliances?
Alternating current is used to operate your electrical appliances.
What do the fuses in a 91 Cadillac sedan deville operate?
Fuses don't operate anything,you do. fuses protect electrical circuits from overload
Do devices operate on power or current?
Electrical devices use power to operate, but power does not exist without current. Alternately, if current is flowing, power is being stored or used by some electrical device.
How does an over current relay work?
An over current relay will operate when current exceeds its design rating. This application is intended protect loads or circuits from excessive current.
Do relays use high voltage to control low currant circuits?
Low voltage to operate relay controlling high CURRENT circuits (currant is a dried fruit).
What are electrical fuses?
Safety devices used in electrical circuits.AnswerA fuse is an overcurrent protection device, and will operate in the event of a sustained overload current or a short-circuit current.
What are the differences between the circuits you find in your house and the circuits on a microchip in a computer?
In a physics sense, none. But in an electrical sense, A LOT. Microchips operate on DC (Direct Current) electricity, typicaly at 12, 5, 3.3, and 1.0-1.5v rails. Computer microchips also may contain hundreds or more of individual circuits, whereas the average house only has a limited number.
What happens when a solar cell cannot supply enough current to a circuit?
the circuit might not operate properly. but shouldn't effect the circuits them self.
Does a motor have electrical energy in it?
An electric motor need to be supplied electricity to operate. It can be made to generate electricity if turned by an outside force when set up correctly.
Why is electric circuits so important?
Electrical conductivity is important because we live in a world that is increasingly run by electronic devices. These devices depend on materials that are electrically conductive to send their signals and operate.
Are calculators at the speed of light?
A calculator can only operate as fast as the electrons that carry the current through its circuits. Electrons have mass, and mass can never travel at the speed of light; therefore, calculators do not operate at the speed of light.
