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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