Two concentric conducting shells and have radii and

PHYSICS · Subjective · CBSE · Physics · Electrostatic Potential and Capacitance · Electrostatic Potential and Capacitance

Problem

Two concentric conducting shells

A

and

B

have radii

r

and

2r

, respectively. A charge

+q

is placed at the centre of the shells. Shell

B

is earthed and a charge

+q

is given to shell

A

. Find the charges on the outer surfaces of

A

and

B