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The displacement current flows in the dielectric of a capacitor when the P.D. across its plates A. is increasing with time B. is not decreasing with time C. has assured a constant value D. becomes zero

The displacement current flows in the dielectric of a capacitor when the P.D. across its plates
A. is increasing with time
B. is not decreasing with time
C. has assured a constant value
D. becomes zero

Grade:Upto college level

2 Answers

Saurabh Koranglekar
askIITians Faculty 10341 Points
one year ago
According to Maxwell's hypothesis, a displacement current will flow through a capacitor when the potential difference across its plates is varying. Thus a varying electric field will exist between the plates and this displacement current is same in magnitude to the current flowing in outer circuit.When a D.C voltage applied across its plates, constant voltage appears across its plates and so there will be no displacement current flowing through the capacitor. Thus the displacement current will flow when the potential is increasing with time.
Vikas TU
14149 Points
one year ago
he potential difference between the plates of both capacitors is VA - VB = Vbat. We have C1 = Q1/Vbat and C2 = Q2/Vbat, where Q1 is the charge on capacitor C1, and Q2 is the charge on capacitor C2. Let C be the equivalent capacitance of the two capacitors in parallel, i.e. C = Q/Vbat, where Q = Q1 + Q2.

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