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Question: Answered & Verified by Expert
In the given circuit switch K is open. The charge on the capacitor is C in steady-state is q1. Now the key is closed and steady-state charge on C is q2. The ratio of charges q1/q2 is -

PhysicsElectrostaticsNEET
Options:
  • A 3/2
  • B 3/1
  • C 1
  • D 1/2
Solution:
2334 Upvotes Verified Answer
The correct answer is: 3/2
Initially when switch is open



Finally when the switch is closed






I=E3R;  VA  VB=I×2R=E/3R × 2R=2E/3

 Charge on capacitor=CV ; q2=C2E3

q1q2=CE2/3CE=3 : 2

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