Watts Law
\(P = I * V\)
References
- The Physics Hypertextbook explains electric power as the product of voltage and current (P = VI), where power is transferred by electric current, with the watt as the unit. It combines this with Ohm's law for variations like P = I²R and P = V²/R. ↗
- Wikipedia's page on Power (physics) states that the instantaneous electrical power P delivered to a component is given by P(t) = I(t) · V(t), measured in watts (joules per second), where V(t) is voltage in volts and I(t) is current in amperes. For a resistor, it derives P = I²R = V²/R. ↗