Consider a tightly wound 100 turn coil of radius 10 cm, carrying a current of 1 A. What is the magnitude of the magnetic field 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 100 turn closely wound circular coil of radius 10 cm carries a current a 3.2 A. What is the field at the centre of the coil ?

A 100 turn closely wound circular coil of radius 10 cm carries a current a 3.2 A. What is the magnetic moment of this coil ?

The magnetic field at the centre of the current carrying coil is

A 100 turn closely wound circular coil of radius 10 cm carries a current of 3.2.A. (a) What is the field at the centre of the coil ? (b) What is the magnetic moment of this coil ? The coil is placed in vertical plane and is free to rotate about a horizontal axis which coincides with its diameter. A uniform magnetic field of 2T in the horizontal direction exists such that initially the axis of the coil is in the direction of the field. The coil rotates through an anlge of 90^(@) under the influence of the magnetic field. (c) What are the magnitudes of the torques on the coil in the initial and final position ? (d) What is the angular speed acquired by the coil when it has rotated by 90^(@) ? The moment of inertia of the coil is 0.1 kg m^(2)

A solenoid of length 0.5 m has a radius of 1 cm and is made up of 500 turns. It carries a current of 5 A. What is the magnitude of the magnetic field inside the solenoid ?

If B is the magnetic field produced at the centre of a circular coil of one turn of length L carrying current I the what is the magnetic field at the centre of the same coil which is made into 10 turns ?