n identical capacitors charged in parallel then joined in series: voltage and energy

1. A.
   potential difference and total energy of the combination remain the same.
2. B.
   potential difference remains the same and energy increases n times.
3. C.
   potential difference becomes nV and energy remains the same.
4. D.
   potential difference is nV and energy increases $n$ times.

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1. A.
   potential difference and total energy of the combination remain the same
2. B.
   potential difference remains the same and energy increases 'n' times
3. C.
   potential difference becomes 'nv' and energy remains the same
4. D.
   potential difference is 'nv' and energy increases 'n' times.

Tap an option to check your answer.