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