State Biot-Savart law. Using Biot-Savart law find the magnitude and direction of magnetic field at a point on the axis of a circular coil of radius 'r', distant 'x' from the center having number of turns N carrying current 'I'.

State Biot-Savert's law. Use this law to find the magnetic field at a point on the axis of a circular coil carrying current.

Using Biot Savart’s law derive an expression for the magnetic field due to a circular current carrying loop at any point on its axis.

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?

Use Biot-Savart's law to obtain the expression for the magnetic field at the centre of a coil in the form of a square of sides 2a carrying a current 'I'.

Using Ampere's circuital law, obtain an expression for the magnetic field along the axis of a current carrying solenoid of lenth l and having N number of turns.

A student records the following data for the magnitudes of the magnetic field at axial points at different distances x from the centre of a circular coil of radius 'a' carrying a current 'I'. Verfity that these observations are in good agreement with the expected theoreticl variations of B with X.