A circular coil of 5 cm radius, number of turns 100 carries a current of 2A. Calculate the magnetic field (a) At the centre of the coil (b) At a distance 10cm from the centre along the axis of the coil

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

A 100 turn closely wound circular cell of radius 10 cm carries a current of 3.2A (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 a vertical plane and is free to rotate about a horizontal axis which coincides with its diameter. A uniform magnetic field 2 T 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 angle of 90^(o) 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^(o) ? The moment of inertia of the coil is 0.1 kg m^(2) .

A 100 milli henry coil carries a current of 1A. Energy stored in its magnetic field is

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