Drop in EMF caused by Inductance is proportional to Rate of Change of Current

Physical Law

The drop in EMF $E_L$ caused by an inductor is proportional to the rate of change of current $I$ through the inductor:

$E_L = L \dfrac {\d I} {\d t}$

Also see

The constant of proportion $L$ is known as the inductance of the inductor.

Sources

• 1972: George F. Simmons: Differential Equations ... (previous) ... (next): $\S 2.13$: Simple Electric Circuits