Electric power calculator
Voltage V = R × I (Formula 1)
Voltage V = P ÷ I (Formula 2)
Power P = V × I (Formula 3)
Current I = P ÷ V (Formula 4)
PowerP = V2÷ R (Formula 5)
(Formula 5) Example: A heater The resistance is 65 Ω, the power supply is 220 V, calculate its power
(220 × 220) ÷ 65 = 744 W < B>Pure DC resistance electric power, current, voltage automatic calculator Please enter any two values, the third value will be calculated.