Physics

Problem

A uniformly charged solid sphere of radius

R

has potential

V_0

(measured with respect to

\infty

) on its surface. For this sphere the equipotential surfaces with potentials

\frac{3V_0}{2}, \frac{5V_0}{4}, \frac{3V_0}{4}

and

\frac{V_0}{4}

have radius

R_1, R_2, R_3

and

R_4

respectively. Then a.

R_1 = 0

and

R_2 < (R_4 - R_3)

2R = R_4

R_1 = 0

and

R_2 > (R_4 - R_3)

R_1 \ne 0

and

(R_2 - R_1) > (R_4 - R_3)