A wire of length 880cm is turned into a circular coil of radius 14cm. If a current of 1.0A is passed through the loop. Calculate the magnetic field at its centre.

A wire of length 4m is bent in the form of a circular coil of single turn. A current 1A is flowing through the wire. If the coil is placed in a mag netic field of 0.4T find the maximum torque experienced by the coil.

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?

A current carrying wire produces a magnetic field in its surrounding space.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 8.0cm carries a current of 0.40A. What is the magnitude of the magnetic field bar B at the centre of the coil?