Ohms law, power law

U = R * I
(Voltage = Resistance * Current)


P = U * I
(Power = Voltage * Current)

R = U² / P

(Resistance = Voltage^2 / Power)

P = U² / R
(Power = Voltage^2 / Resistance)

U = voltage, R = resistance, V = ampere, P = watts

Current = Ström

Voltage = Spänning

Resistance, Impedance = Motstånd, Impedans