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.

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'.

Find magnetic field intensity at a point well inside the solenoid carrying current.

State Biot-Savart's law, giving the mathematical expression for it. Use this law to derive the expression for the magnetic field due to a circular coil carrying current at a point along its axis. How does a circular loop carrying current behave as a magnet?

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