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Electrical Energy
Start of Term Paper
A capacitor can store . Connecting it across a resistor or other device discharges it. Across the resistor there is a potential difference that creates the electric current. When the charge in the capacitor decreases, at the same time the volta .... Middle of Term Paper
... current is reduced without reducing power by increasing voltage. The resulting lower current reduces the power loss in the power lines by keeping the current squared factor low. Long-distance transmission lines always operate at high voltage to reduce power loss.
The used by many devices is the rate of energy consumption, which is measured in large numbers of joules called a kilowatt-hour. A kilowatt-hour is the amount of energy equal to 3.6*10^6 J. It is a unit of energy that is the product of power and time.
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| Number of Words: 231 |
Approximate Pages: 1 |
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