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Most Important Selected Qs for JEE AdvancedPhysicsCapacitance

The figure shows a RC circuit with a parallel plate capacitor. Before switching on the circuit, plate A of the capacitor was given a charge -Q₀ while plate B had no net charge. Now, at t=0 , the circuit is switched on. How much time (in seconds) will elapse before the net charge on plate A becomes zero. Take C =1 F , Q ₀=1 mC , =1000 ~V and R = 2 10^6 (3)

Correct answer

2

Step-by-step solution

aligned & - q C + - dq dt R =0 & _ -Q₀ / 2 ^ Q₀ / 2 dq q - C = ₀^ t - dt RC aligned

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