Question

A circular coil having N turns is made from a wire L meter long. If a current of I ampere is passed through this coil suspended in a uniform magnetic field of B tesla, find the maximum torque that can act on this coil.

Answer 1

Field at the center of circular coil of radius r and the current flow is lines of the current magnetic field around the center of the respective carrying straight conductor will be right choice.

On the other hand two circular could of radis 20 cm and 30 cm having the number of turns 50 and also 100 made .

This wire or length L meter carrying a currents “I” amperes is bent in the form of a.