Calculate the current passing through a coil of diameter 20 cm , having 50 turns, when the magnetic field at the centre of the coil is `2.5xx10^(-6) T `.

What is the current passing through a coil of radius of 8 cm having 50 turns, when a magnetic field at the centre of the coil is 1.57xx10^(-6) T ?

A current of 1 A is flowing through a circular coil of radius 10 cm having N turns. If the magnetic field produced at the centre of the coil be 4pixx10^(-6)T , what is the value of N ?

A circular coil of radius 10 cm having 100 turns carries a current of 3.2 A. The magnetic field at the center of the coil is

A circular coil of radius 10 cm having 100 turns carries a current of 3.2 A. The magnetic field at the center of the coil is

Calculate the current in a circular coil of radius 5 cm and 100 turns to produce a field of 2 xx 10^-5 T at its centre.

A coil of 50 turns and 4cm radius carries 2A current then magnetic field at its centre is :- ?

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 current of 10A passes through a coil having 5 turns and produces a magnetic field of magnitude. 5 xx 10^-4T at th e centre of the coil. Calculate the diameter of the coil.

A current of 1 A passes through a circular coil of 120 turns, each of radius 50 cm. What is the magnetic moment of the coil?