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Q.

In the circuit shown, the cells are ideal and of equal emfs. The capacitance of the capacitor is C and the resistance of the resistor is R. Xis first joined to Y and then to Z. After a long time, the total heat produced in the resistor will be

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a

equal to the energy finally stored in the capacitor

b

half of the energy finally stored in the capacitor

c

twice the energy finally stored in the capacitor

d

4 times the energy finally stored in the capacitor

answer is D.

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Detailed Solution

Word done by cell = 2q.V=412 q.V= 4 (energy stored in capacitor)
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In the circuit shown, the cells are ideal and of equal emfs. The capacitance of the capacitor is C and the resistance of the resistor is R. Xis first joined to Y and then to Z. After a long time, the total heat produced in the resistor will be