The rms value of the conduction current in a parallel plate capacitor is 6.9 μA. 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
The Correct Option is B
Solution and Explanation
Current in capacitor I=\(\frac{V}{X}\)C
I=(V)×(ωC)
C=\(\frac{I}{V\omega}\)=\(\frac{6.9×10^{−6}}{230×600}\)
=50 pF
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Concepts Used:
Displacement Current
Displacement current is a quantity appearing in Maxwell’s equations. Displacement current definition is defined in terms of the rate of change of the electric displacement field (D). It can be explained by the phenomenon observed in a capacitor.
