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CGP EDU Academic Team
Published on: September 12, 2026
A parallel plate capacitor whose capacitance C is 14pF is charged by a battery to a potential difference V = 12 V between its plates. The charging battery is now disconnected and a porcelain plate with k=7 is inserted between the plates, then the plate would oscillate back and forth between the plates with a constant mechanical energy of ______ pJ (Assume no friction)
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Verified by ExpertsThe correct answer is:
864
(864) JEE Main 2021
Mechanical energy 
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