A solid conducting   sphere of radius a having a charge q is surrounded by a concentric conducting
Channel: Doubtnut
Date: 2020-08-30

A solid conducting   sphere of radius a having a charge q is surrounded by a concentric conducting spherical shell of inner radius `2a` and outer radius `3a` as shown in figure. Find the amount of heat porduced when switch is closed `(k=1/(4piepsilon_0))`