Rankers Physics
Topic: Magnetic Effects of Current
Subtopic: Bar Magnet

A loop in the shape of an equilateral triangle of side l is suspended between the pole pieces of a permanent magnet such that \[\overrightarrow{B}\] is in plane of the loop. If due to a current i in the triangle a torque τ acts on it, the side l of the triangle is :
\[\frac{2}{\sqrt{3}}.\left( \frac{\tau}{Bi} \right)\]
\[\frac{1}{\sqrt{3}}.\frac{\tau}{Bi}\]
\[2\left( \frac{\tau}{\sqrt{3}Bi} \right)^{1/2}\]
\[\frac{2}{\sqrt{3}}.\left( \frac{\tau}{Bi} \right)^{1/2}\]

No solution provided for this question.

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