Question

What maximum voltage can be applied to the combination of identical capacitors as shown if each capacitor can withstand a maximum of 500 V.

(A) 1500 V

(B) 1000 V

(C) 750 V

(D) 500 V

Answer 1

Correct Answer is: (C) 750 V

Q1max = 500 × C

Q2max = 1000 C

⇒ Q on both = 500 C = 2C/3 x v

V = 750