Science, asked by anushkabhosale11, 11 months ago

Formula of electric power

Answers

Answered by wwwanjali2002dec
5

P=V×I(V-VOLTAGE ,I-CURRENT)

  OR

P=I²R=V²/R(R-RESISTANCE)



jazibk0007: Power = Work Done / Time
=W / t
Work done = I^2 ×r×t
Therefore,
P =( I^2 ×R×t) / t
= I^2 × R
I=V/R
Therefore,
P = (V^2 / R^2) × R
jazibk0007: P = V^2 / R
Answered by eprathiksha
2

Electric power is the rate at which energy is transferred to or from a part of an electric circuit. A battery can deliver energy, or a circuit element like a resistor can release energy as heat. For any circuit element, the power is equal to the voltage difference across the element multiplied by the current. By Ohm's Law, V = IR, and so there are additional forms of the electric power formula for resistors. Power is measured in units of Watts (W), where a Watt is equal to a Joule per second (1 W = 1 J/s).


General form:


electric power = voltage difference x current


P = VI


Resistors:


P = electric power (W)


V = voltage difference (V = J/C)


I = electric current (A = C/s)


R = resistance (Ω = V/A)



I hope it will be helpful

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