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identical condensers are joined in parallel and are charged to potential V . Now they are separated and joined in series. Then the total energy and potential difference of the combination will be
  1. Energy remains same and potential difference is nV

  2. Energy and potential difference remain same

  3. Energy increases n times and potential difference is nV

  4. Energy increases n times and potential difference remains same


Solution

The correct option is A

Energy remains same and potential difference is nV


According to energy conservation, energy remains the same

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