Question

Four capacitors and a battery are connected as shown. The potential drop across the 7 µF capacitor is 6V. Then the; 

(A) Potential difference across the 3 µF capacitor is 10V 

(B) Charge on the 3 µF capacitor is 42 µC 

(C) Emf on the battery is 30V 

(D) Potential difference across the 12 µF capacitor is 10V

Answer 1

Correct option (B, C, D) 

Explanation: 

Answer 2

Answer is B . The charge through 3 micro F capacitor will be 42 micro C.

Q= CV therefore charge in 7 micro F capacitor is 42 micro C . When capacitors are in series the charge flow through them is same.