JEE Main 2022 · 25 Jul · Shift 1 · Physics Q44

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PhysicsSingle correct+4 / -1Question 44 of 90

The rms value of conduction current in a parallel plate capacitor is 6.9 $\mu$ A. The capacity of this capacitor, if it is connected to 230 V ac supply with an angular frequency of 600 rad/s, will be :

5 pF

50 pF

100 pF

200 pF

Answer and worked solution

Official answer: B

$I=V\omega C$ . $C=\dfrac{6.9\times10^{-6}}{230\times600}=5\times10^{-11}$ F $=50$ pF.

(B)

Topics:Reactance and impedance Displacement current

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JEE Main 2022 · 25 Jul · Shift 1, Physics question 44