The magnetic dipole moment of any current loop is equal to the product of the current and its loop area.

Its direction is defined to be normal to the plane of the loop in the sense given by right hand thumb rule.

Right hand thumb rule- according to this rule if we curl the fingers of the right hand in the direction of current in the loop,then the extended thumb gives the direction of the magnetic moment associated with the loop.

It follows from this rule that the upper face of the current loop has N-polarity and the lower face has S- polarity.

Thus a current loop behaves like a magnetic dipole.