A rectangular coil of area 200cm²is crossed by a current equal to 2 A. The normal vector to the plane of the coil is inclined by 30° wit h respect to the lines of force of a uniform magnetic field equal at 0.1 T. The torque exerted on the coild is: O (to)5 x 10-4Nm Ⓒ (b)2 x 10-³ Nm O (c)1 x 10-³ Nm
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