Question

A circular coil of 8 turns and mean radius 10 centimetre carries a current of 1 ampere and the magnitude of magnetic induction at its centre

Answer 1

no. of turns in the coil = 8

radius of the coil = 0.1m

current passing through the coil = 1A

Magnetic field induced at the center of the coil = 2(4π * (10)^7 * 1 )/(2* 0.1)

= 12.566* 10^6 tesla