Write the expression for magnetic field at the centre of a current carrying circular coil.

Using Biot-Savart's law, derive an expression for magnetic field at the centre of a current carrying circular coil. What will be the direction of this magnetic field?

State Biot Savarts law. Write down the expression of magnetic field at the centre of a current carrying circular coil of N turns.

The magnetic field at the centre of the current carrying coil

The magnetic field at the centre of the current carrying coil

Obtain an expression for magnetic induction at the centre of current carrying circular coil.

The magnetic field at the centre of current carrying coil is

The magnetic field at the centre of the current carrying coil :

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

The magnetic field at the centre of the current carrying coil is

The magnetic field at the centre of the current carrying coil is