The distance between the plates of a parallel plate condenser is 4 mm and potential difference is 60 volts. If the distance between the plates is increased to 12 mm, then

Options :
  1. The potential difference of the condenser will become 180 volts
  2. the P.D. will become 20 volts
  3. The P.D. remain unchanged
  4. none of the above
Answer and Explanation :-

Answer: Option 1


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