A coil in the shape of an equilateral triangle of side 0.02 m is suspended from a vertex such that it is hanging in a vertical plane between the pole pieces of a permanent magnetic producing a horizontal magnetic field of `5 xx 10^-2T`. Find the torque acting on the coil when a current of 0.1 ampere is passed through it and the magnetic field is parallel to its plane.

Options

A. `5 xx 10^(-7) Nm`
B. `5sqrt3 xx 10^(-7) Nm`
C. `2.5sqrt3 xx 10^(-7) Nm`
D. `5sqrt3 xx 10^(-7) Nm`

Answer

B