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14. A coil in the shape of an equilatera...

14. A coil in the shape of an equilateral triangle of side 0.02 m is suspended from its vertex such that it is hanging in a vertical plane between the pole pieces of permanent magnet producing a uniform magnetic field of 5 X 10 - T. If a current of 0.1 A is passed through the coil, the couple acting on it is (a) 513x10-'Nm (b) 513x10-1°Nm (c)2x10-'Nm w √3 (d) None of these net force on the given coil?

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