Formula of electric power
Answers
P=V×I(V-VOLTAGE ,I-CURRENT)
OR
P=I²R=V²/R(R-RESISTANCE)
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
=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