In the circuit shown in the figure, there are two parallel plate capacitors each of capacitance C. The switch S 1 is pressed first to fully charge the capacitor C 1 and then released. The switch S 2 is then pressed to charge the capacitor C 2 . After some time, S 2 is released and then S 3 is pressed. After some time.
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(b, d)
Sol. When switch S 1 is released charge on C 1 is 2CV 0 (on upper plate)
When switch S 2 is pressed charge on C 1 is CV 0 (on upper plate) and charge on C 2 is CV 0 (on upper plate)
When switch S 2 is released and switch S 3 pressed charge on C 1 is CV 0 (on upper plate) and charge on C 2 is – CV 0 (on upper plate)
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