In an electrical circuit with an inductor, how is the instantaneous voltage across the inductor related to the rate of change of current through it?
A) The instantaneous voltage is directly proportional to the rate of change of current through the inductor.
B) The instantaneous voltage is inversely proportional to the rate of change of current through the inductor.
C) The instantaneous voltage is equal to the current through the inductor.
D) The instantaneous voltage is constant regardless of the rate of change of current.