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Question

A parallel plate capacitor of capacitance 20 μF is being charged by a voltage source whose potential is changing at the rate of 3 V/s. The conduction current through the connecting wires and the displacement current through the plates of the capacitor would be respectively


A
0 μA, 60 μA
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B
60 μA60 μA
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C
60 μA0 μA
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D
0 μA, 0 μA
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Solution

The correct option is B 60 μA60 μA
V = Q Q = CV i = CdVdt = 20 μF×3 V/s        =60 μA
Also, conduction current in wires is equal to displacement current between the plates of capacitor.

Physics

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