Choose the correct answer

A thin insulated wire forms a plane spiral of N = 100 tight turns carrying a current I = 8 m A (milli ampere). The radii of inside and outside turns are a = 50 mm and b = 100 mm respectively. The magnetic induction at the centre of the spiral is

- (a) 5 T

- (b) 7 T

- (c) 8 T

- (d) 10 T

Correct Answer:

(b) 7 T

0

Answered on 29/10/2020 at 12:39PM by Thamizh