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Q.

In an ac circuit an alternating voltage e = 200 2sin100t volts  is connected to a capacitor of capacity 1 μF.. The r.m.s. value of the current in the circuit is:

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a

10 mA

b

100 mA

c

200 mA

d

20 mA

answer is D.

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Detailed Solution

Vrms=20022=200 V

Irms=VrmsXC=2001100×10-6=200×10-4

   =20×10-3=20 mA

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