Electrostatic Potential and Capacitance Moderate Questions and Answers | Page - 1

Electrostatic Potential and Capacitance

Three capacitors each of capacitance C and of breakdown voltage V are joined in series. The capacitance and breakdown voltage of the combination will be

1. 3C, V
  3
1. C 3V
  3
1. 3C, 3V
1. C , V
  3 3

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In series combination of capacitors V_eff = V + V + V = 3V
1 = 1 + 1 + 1
C_eff C C C

⇒ C_eff = C
3

Thus, the capacitance and breakdown voltage of the combination will be C/3 and 3V.

Correct Option: B

In series combination of capacitors V_eff = V + V + V = 3V
1 = 1 + 1 + 1
C_eff C C C

⇒ C_eff = C
3

Thus, the capacitance and breakdown voltage of the combination will be C/3 and 3V.