Write down the Biot - Savart law in the vector form. Hence find the magnetic field intensity in magnitude and direction at the centre of a circular coil carrying a current.

State Avogadro's law.

State Avogadro's law:

State Avogadro's law.

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

State Gay Lussac's law of pressure.

A copper wire of length l metre is bent to form a circular loop. If I amp current flows through the loop, find out the magnitude of magnetic moment of the loop. Or, Write down the Biot-Savart law. Show its vector form.

State Pascal's law of fuild

State and explain ohms law.

Using Biot-Svart's law, derive the expression for the magnetic field in vector form at a point on the axis of a circular current loop.