A resistor and an inductor are connected in series to an ideal battery of constant terminal voltage. At the moment contact is made with the battery, the voltage across the inductor is
A) equal to the voltage across the resistor.
B) equal to the battery's terminal voltage.
C) less than the battery's terminal voltage, but not zero.
D) greater than the battery's terminal voltage.
E) zero.

Question

Quizplus · Accepted Answer

At the moment contact is made with the battery, the voltage across the inductor is equal to the battery's terminal voltage. This is because the inductor initially opposes changes in current, causing all the battery's voltage to appear across it until the current starts to change.

A Resistor and an Inductor Are Connected in Series to an Ideal