Q.

A  100Ω resistance and a capacitor of  100Ω  reactance are connected in series across a 220 V source. When the capacitor is 50% charged, the peak value of the displacement current is 

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a

4.4 A

b

11 A

c

112A

d

2.2A

answer is C.

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Detailed Solution

Z=R2+XC2       =1002+1002=1002Ω (id)max=Vmaxz =2.2A

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A  100Ω resistance and a capacitor of  100Ω  reactance are connected in series across a 220 V source. When the capacitor is 50% charged, the peak value of the displacement current is