Three concentric

PHYSICS · Multi-part · CBSE · Physics · Electrostatic Potential and Capacitance · Electrostatic Potential and Capacitance

Problem

Three concentric, thin, spherical metallic shells have radii

1

2

, and

4\ \text{cm}

and are held at potentials

10

0

, and

40\ \text{V}

, respectively. Taking the origin at the common centre, calculate the following: (1) Potential at

r=1.25\ \text{cm}

(2) Potential at

r=2.5\ \text{cm}

(3) Electric field at

r=1.25\ \text{cm}