A parallel-plate capacitor is formed by two discs with a uniform poorly conducting medium between them. The capacitor was initially charged and then disconnected from a voltage source. Neglecting the edge effects, show that there is no magnetic field between capacitor plates.

Medium

Open in App

Solution

Verified by Toppr

Here also we see that neglecting edge effects, $j_{d} =−j $. Thus Maxwell's equations reduced to, div $B=0,CurlH=0,B=μH$ A general solution of this equation is $B=constant=B_{0}⋅B_{0}$ can be thought of as an extraneous magnetic field. If it is zero, $B=0$.

Solve any question of Electrostatic Potential and Capacitance with:-