How to make an approach? A cavity of radius r is present inside a solid dielectric sphere of radius R, having
a volume charge density of p. The distance between the centres of the sphere
and the cavity is a. An electron e is kept inside the cavity at an angle 0 = 450 as
shown. The electron (mass m and charge —e) touches the sphere again after
1/2
pVä
? Find the value of P. Neglect gravity.
time
ear
A solid conductor sphere having a charge Q is surrounded by an uncharged concentric
hollow spherical shell. Let the potential difference between the surface of the solid sphere and