A square surface of side L metre is in the plane of the paper. A uniform electric field E (V/m), als

A chare q is placed at the centre of the line joining two exactly equal positive charges Q. The syst

An insulated sphere of radius R has charge density . The electric field at a distance r from the cen

An electric dipole is placed at an angle of with an electric field intensity . It experiences a torq

An electron having kinetic energy K is projected, between two charged plates, at an angle θ = 45° as

Two identical tennis balls each having mass ‘m’ and charge ‘q’ are suspended from a fixed point by t