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Physics Section 3: Current Electricity > Electrical Energy And Power > Flashcards

Flashcards in Electrical Energy And Power Deck (5)
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What is power

The rate of transfer of energy

1

What is 1 watt equivalent to

1 joule per second

2

What is the simple formula for power in electrical circuits

P=VI

3

What is the equation that shows power is the rate of transfer of energy

P=E/t

4

We know that P=VI and V=IR, so what can we do with the two equations

Combine them to form 3 other ones
P=VI
P=V^2/R
P=I^2R