Define electric field intensity and find an expression for it at a point due to a thin infinite long sheet of charge.

Define electric field intensity at a point.

Derive an expression for electric potential at a point due to a point charge.

State Gauss' theorem in electrostatics. Derive an expression for the electric field intensity at any point of to an infinite plane sheet of charge.

State Gauss.s theorem in electrostatics. Using it, derive an experssion for electric field intensity at a point due to infinite sheet of charge. How does the electric field change for a thick sheet of charge?

Define electric field intensity due to point charger. Give is SI units.