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

Determine the magnetic induction at the centre of a circular coil of radius r carrying a current I with the help of the Biot-Savart law.

Write down the Biot-Savart law. Show its vector from.

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.

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 and write the mathematical form of Biot-Savart's law with concerned figure.

Which of the following relation represent Biot-Savart's law?

Write down Biot-Savart law in vector from with an accompanying diagram.

With an accompanying diagram, wirte down Biot-Savart's law in vector form. Can a cyclotron accelerate neutrons?

Which one of the following relations expresses Biot-Savart law ?