Question

Which of the following expressions is correct with respect to the voltage across capacitors in series?

(a) V1/V2=C2/C1

(b) V2/V1=C2/C1

(c) V1*V2=C1*C2

(d) V1/C1=V2/C2

The question was posed to me in exam.

I'd like to ask this question from Distribution of Voltage Across Capacitors in Series in section Capacitance and Capacitors of Basic Electrical Engineering

Answer 1

Correct option is (a) V1/V2=C2/C1

The explanation is: When capacitors are connected in series, the charge across each capacitor remains the same whereas the voltage across each varies. When two capacitors are connected in series:

Q=V1C1; Q=V2C2. Thus: V1/V2=C2/C1.