Write expression for the magnetic flux density at a point due to a current carrying wire of:
an infinite length?

Write expression for the magnetic flux density at a point due to a current carrying wire of: a finite length?

Derive an expression for the magnetic field.at the centre of a current carrying coil.

State Ampere's circuital law. By using it derive an expression for magnetic field intensity at a point due to a straight current carrying conductor.

Write expression for the magnetic flux density due to a circular current loop at a point on the axis.

Derive an expression for magnetic field at the centre of circular current carrying coil.

The magnetic field at a point due to a current carrying conductor is directly proportional to