A circular coil of wire consisting of 80 turns, each of radius 8 cm, carries a acurrent of 0.5 A. Calculate the magnitude of magnetic field B at the centre of the coil.

A circular coil of wire consisting of 100 turns, each of radius 8.0 cm carries a current of 0.40 A. What is the magnitude of the magnetic field B at the centre of the coil?

A semicircular arc of radius 20 cm carries a current of 10 A. Calculate the magnitude of magnetic field at the center of the arc.

A circular coil of 50 turns and radius 0.2 cm carries a current of 12 A. Find magnetic field at the centre of the coil.

A circular coil of 200 turns and radius 0.2 m carries a current of 14 A. What is the magntitude of magnetic moment associated with the coil?

A hexagonal loop of a metallic wire is of each side a and carries a current I . Find the magnitude of magnetic field at the centre of the loop.

A circular coil of 300 turns and diameter 14 cm carries a current of 15 A. what is the magnitude of magnetic moment associated with the coil?

A solenoid of length 30 cm, having 150 turns carries of 2.1 A. calculate the magnitude of magnetic field in the interior of the solenoid.