Cavity inside the conductors and conducting shells

Cavity inside a conductor

Energy density of electric field | Conductors: properties under electrostatic condition | Induction of charges | Cavity inside conducters | Electrostatic shielding

A positive point charge Q is kept (as shown in the figure) inside a neutral conducting shell whose centre is at C. An external uniform electric field E is applied. Then :

Examples OF Cavity inside a Conductor||Earthing OF a Conductor

Why is the electrostatic potential inside a charged conducting shell constant throughout the volume of the conductor?

According to the definition of conductivity (sigma=J//E) , electric field is being considered to exist inside a conductor but according to electrostatics of conductor , electric field cannot exist inside its volume. Explain the difference and state the condradiction if any.

Cavity Inside a Conductor || Examples on Electric Field & Potential

A small spherical conductor 'A' of radias 'a' is initially charged to a potential 'V' and then placed inside an uncharged spherical conducting shell 'B' of radius 6a as shown. The potential of the spherical conductor 'A' after closing the switch S is