Online Electrical Power Formula-Power Formula



Pure DC resistance electric power calculation formula, pure DC resistance electric power, current, voltage online automatic calculator

Enter any two values and the third value will be calculated.

Voltage \(V = R \times I \) (Equation 1)

Voltage \(V = \frac {P}{I} \) (Equation 2)

Power \(P = V \times I\) (Equation 3)

Current \(I = \frac {P}{V} \) (Equation 4)

Power \(P = \frac {V^2}{R} \) (Equation 5)

Example: A heater has a resistance of 65Ω and a power supply of 220V.

\( \frac {220 \times 220}{65} =744W\)

 

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