Two identical parallel-plate capacitors \( A \) and \( B \) are connected to a battery of \( \ma...

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Two identical parallel-plate capacitors \( A \) and \( B \) are connected to a battery of \( \mathrm{V} \) volts with a switch \( \mathrm{S} \) closed. The switch is now opened and the free space between the plates of the capacitor is filled with a dielectric of dielectric constant K. Find the ratio of the total electrostatic energy stored in both capacitors before and after the introduction of the dielectric.
(CBSE 2017)
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Pehle vaale mein V ko V/K kyu nhi likha

krishnajhanji