43 A current i ampere flows in a circular arc of wire whose

Last updated: 6/20/2023

43 A current i ampere flows in a circular arc of wire whose radius is R which subtend an angle 31 2 radian at its centre The magnetic induction B at the centre is 1 Hoi R 2 Hoi 2R 3 2 i R 4 3 i 8R