Capacitors of values 1.0 F, 2.0 F, 3.0 F, and 6.0 F are connected in series across a 12 V power supply. Which capacitor has the greatest potential difference across it?
A) the 1.0 F capacitor
B) the 2.0 F capacitor
C) the 3.0 F capacitor
D) the 6.0 F capacitor
E) they all are equal

Question

Quizplus · Accepted Answer

In a series circuit, the charge (Q) on each capacitor is the same. The potential difference (V) across a capacitor is given by V = Q/C, where C is the capacitance. Since the charge is the same for all capacitors, the one with the smallest capacitance (1.0 F) will have the greatest potential difference across it.

Capacitors of Values 1