A wire in the form of a square of side ‘a’ carries a current i. Then the magnetic induction at the centre of the square wire is (Magnetic permeability of free space = μ0)

(a) μ0i2πa                   (b)  μ0i2πa

(c)  22 μ0iπa             (d)  μ0i2πa

Explanation is a part of a Paid Course. To view Explanation Please buy the course.

Difficulty Level: