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MHT CET 2021 (21 Sep, Shift 2) · Charge Sharing & Loss of Energy

Charge Sharing & Loss of Energy question from MHT CET 2021 (21 Sep, Shift 2)

Q22MHT CET 2021 · 21 SEP · SHIFT 2Easy

Charge Sharing & Loss of Energy

A condenser of capacity 'C1C_1' is charged to potential 'V1V_1 ' and then disconnected. Uncharged capacitor of capacity 'C2C_2' is connected in parallel with 'C1C_1'. The resultant potential 'V2V_2' is

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Answer: (d)

  1. Charge is conserved: C1V1=(C1+C2)V2C_1V_1 = (C_1 + C_2)V_2.
  2. V2=C1V1C1+C2V_2 = \frac{C_1V_1}{C_1 + C_2}
  3. So the answer is (d).
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