A square frame of side carries a current i The magnetic

Last updated: 5/31/2023

A square frame of side carries a current i The magnetic field at its centre is B The same current is passed through a circular coil having the same perimeter as the square The field at the centre of B the circular coil is B The ratio of B 1 2 3 4 8 2 TC 8 2 3 TU 8 2 TU 4 2 2 is