Question

A current of i ampere is flowing in an equilateral triangle of side a. The magnetic induction at the centroid will be -

• A. $\frac{{\mu }_{0}i}{3\sqrt{3}\pi a}$
• B. $\frac{3{\mu }_{0}i}{2\pi a}$
• C. $\frac{5\sqrt{2}{\mu }_{0}i}{3\pi a}$
• D. $\frac{9{\mu }_{0}i}{2\pi a}$

Answer 1

The correct option is D $\frac{9{\mu }_{0}i}{2\pi a}$