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Capacitors

Q1:

A sine wave voltage is applied across a capacitor. When the frequency of the voltage is decreased, the current

A increases

B remains constant

C decreases

D ceases

ANS:C - decreases

@Mangesh. Your explanation is right.

R=Xc or XL then I=V/Xc.
Xc is inversely proportional to frequency(Xc=1/2πfc).
Frequency decreases means Xc increases then Xc is inversely proportional to I.

Option D is right.



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