A coil in the shape of an equilateral triangle of side l is suspended between the pole pieces of a permanent magnet, such that magnetic field of intensity B is along the plane of the coil. If due to a current I in the triangle, a torque τ acts on it, then side l of the triangle is :

A coil in the shape of an equilateral triangle of side l is suspended

1.	A coil in the shape of an equilateral triangle of side l is suspended between the pole pieces of a permanent magnet, such that magnetic field of intensity B is along the plane of the coil. If due to a current I in the triangle, a torque τ acts on it, then side l of the triangle is :
Answer» A coil in the shape of an equilateral triangle of side $l$ is suspended between the pole pieces of a permanent magnet, such that magnetic field of intensity $B$ is along the plane of the coil. If due to a current $I$ in the triangle, a torque $τ$ acts on it, then side $l$ of the triangle is :

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A coil in the shape of an equilateral triangle of side l is suspended between the pole pieces of a permanent magnet, such that magnetic field of intensity B is along the plane of the coil. If due to a current I in the triangle, a torque τ acts on it, then side l of the triangle is :

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