Electric Field inside a Cavity
Electric Field inside a Cavity: Overview
This topic covers the concept of Electrostatic Shielding.
Important Questions on Electric Field inside a Cavity
A point charge is kept inside a conducting shell of radius at a distance of from center. Magnitude of field due to induced charges on the inner surface of the shell at point is

Why electric field intensity inside hollow spherical charged conductor is zero

What is the unit of intensity of electric field?

What happens when there is a cavity inside a conductor?

A solid conducting sphere of radius is surrounded by a thin uncharged concentric conducting shell of radius . A point charge is placed at a distance from common centre of conducting sphere and shell. The inner sphere is then grounded.
Pick up the correct statement.

A metallic shell has a point charge q kept inside its cavity. Which one of the following diagrams correctly represents the electric lines of forces?
