Question

When static equilibrium is established for a charged conductor, the electric field just inside the surface of the conductor is When static equilibrium is established for a charged conductor, the electric field just inside the surface of the conductor is equal to the field outside. opposite to the field outside. zero. equal to the perpendicular component of the field outside. cannot be determined.

Answer 1

in charged conductors , free charges are allowed to move easily and they reside on the surface of the conductors.. when the static equlibrium is established for such a conductor the free charges move in a manner such that the parallel component of electric field inside the surface of the conductor becomes zero(if it was not zero then it would cause the free charges to move but in static equlibrium charges does not move anymore). but just outside the surface it becomes perpendicular.

so at static equlibrium electric field inside the conductor is zero while just outside the conductor electric field is perpendicular to the surface.