Derive an expression for the magnetic field due to an infinitely long straight wire carrying current I.

State the expression for magnetic field due to:- infinity long, straight wire,

State the expression for magnetic field due to:- semi - infinite straight wire.

Derive an expression for an electric field due to a charged infinite plane sheet.

State the expression for the magnetic field at the centre of a full circle of a wire carrying a current I.

Derive an expression for Earth magnetic field interns of its components.

State the expression for the magnetic field due to a circular are of wire carrying a current I. Hence find the magnetic field at the centre of circular coil and having n turns.

Derive an expression for the magnetic field produced by a toroid using Ampere's law.

Derive an expression for energy stored in a magnetic field.

Derive an expression for the magnetic field produced by a current flowing through a circular arc of the wire.

Derive an expression for magnetic induction at a point along axis of current carrying circular coil .