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A flat coil of n turns, area A and carry...

A flat coil of `n` turns, area `A` and carrying a current `I` is placed in a uniform magnetic field of magnitude `B`. The plane of the coil makes an angle `theta` with the direction of the field. The torque acting on the coil is

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Right-hand rule : Imagning cupping the coil with your right hand so that your right thumb is outstretched in the direction of `vec(mu)`. The direction in which your fingers curl around the coil is the direction of the current in the coil. Thus, in the wires on the near side of the coil - those we see in Fig. the current is from top to bottom.
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