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Questions  

How would you establish an instantaneous current 4A in the space between the two parallel plates of 2μF capacitor? 

a
By changing the potential difference across the parallel plates of capacitor at the rate of   1×106 v/s
b
By changing the potential difference across the parallel plates of capacitor at the rate of   4×106 v/s
c
By changing the potential difference across the parallel plates of capacitor at the rate of  8×106 v/s
d
By changing the potential difference across the parallel plates of capacitor at the rate of  2×106 v/s

detailed solution

Correct option is D

Displacement current  ID=∈0dϕEdt ⇒ID=∈0AdEdt⇒ID=∈0AdVddt ⇒ID=∈oAddVdt=CdVdt ⇒dVdt=IDC=42×10−6=2×106Vs

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Similar Questions

A parallel plate capacitor of plate separation 2 mm is connected in an electric circuit having source voltage 400 V. if the plate area is 60 cm2, then the value of displacement current for 106sec  will be


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