3 ms·
Even for purely resistive loads, power is proportional to the square of the voltage: P = V * I But, I = V / R So, P = V * (V / R) = V^2 / R
by mmwelt 9y ago
Even for purely resistive loads, power is proportional to the square of the voltage:
P = V * I
But,
I = V / R
So,
P = V * (V / R)
= V^2 / R