The magnetic field produced by the magnet is proportional to its magnetic moment. The force between two wires, each of which carries a current, can be understood from the interaction of one of the currents with the magnetic field produced by the other current.

a Both components are quantized. It is a magnetic analogue of the electric dipole, but the analogy is not perfect.In particular, a magnetic monopole, the magnetic analogue of an electric charge, has never been observed.

Magnetic moment is also known as a magnetic dipole moment and its positive direction is dependent on the way an object reacts to the magnetic field. The unit for dipole moment in centimeter–gram–second electromagnetic system, in meter–kilogram– second–ampere is an ampere-square meter, is the erg (unit of energy) per gauss (unit of magnetic flux density). The magnetic dipole moment, μ, associated with an electric current flowing in a loop of wire is μ=NiA, where N is the number of turns in the loop, i is the current (in amperes) and A is the cross-sectional area of the loop. Magnetic Dipole Moment From the expression for the torque on a current loop , the characteristics of the current loop are summarized in its magnetic moment The magnetic moment can be considered to be a vector quantity with direction perpendicular to the current loop in the right-hand-rule direction. Find the magnitude of the magnet's magnetic dipole moment. The smallest angle between μ and B is 60 o.

It is repulsive if the currents are in opposite directions. The magnetic moment is the magnetic moment per turn, times the number of turns, μ = NabI. Considering the current …

Magnetic dipole moments have sizes of current time’s region or energy separated by magnetic flux density.

A bar magnet is oriented with its magnetic dipole moment at 31.5° to the direction of a 0.0783-T magnetic field, causing a torque of 0.00487 Nm to act on it. For example, the force between two parallel wires carrying currents in the same direction is attractive.

The direction of the magnetic moment points from the south to north pole of the magnet. The magnetic moment may be considered to be a vector having a magnitude and direction. A proton possesses a magnetic dipole moment and has a half-integer nuclear spin, I = ½. A magnetic dipole is a magnetic north pole and a magnetic south pole separated by a small distance.

In the presence of an external magnetic field, the magnetic dipole moment aligns either parallel or anti-parallel to the direction of B 0.As shown in Fig. Details of the calculation: The magnitude of the torque is τ = N ab IB sin60 o = 100(0.4)(0.3)(1.2)(0.8)(0.866) Nm = 9.98 Nm. magnetic field; that is, the magnet acts as a compass and aligns itself north-south. The period of the oscillation depends on the magnetic dipole moment of the An alternative and more quantitatively useful definition of the magnetic moment is to model it as arising from a tiny current traveling around the edge of a loop of cross sectional area ().The magnetic dipole moment (µ) is a vector defined as µ = i A whose direction … c Only the component of the spin magnetic dipole moment is quantized. When the magnet is displaced from its equilibrium direction, it oscillates in simple har-monic motion. Objects tend to place themselves in such a way that the magnetic moment vector then becomes parallel to the magnetic field lines. If you want direction of magnetic moment of a magnetic needle or bar magnet then arrange them such that they can rotate freely in horizontal plane.

b Only the component of the spin angular momentum is quantized. The direction of the dipole moment, which may be represented mathematically as a vector, is perpendicularly away from the side of the surface enclosed by the counterclockwise path of positive charge flow. In this situation they will get adjusted along north south direction. The unit for dipole moment in metre–kilogram– second–ampere is ampere …

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