A parallel plate condenser is connected with the terminals of a battery. The distance between the plates is 6 mm. If a glass plate (dielectric constant K=9) of 4.5 mm is introduced between them, then the capacity will become

Options :
  1. 2 times
  2. the same
  3. 4 times
  4. 3 times
Answer and Explanation :-

Answer: Option 4


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