Question

Magnetic pole moment is a vector quantity directed from:
A) South pole to north pole
B) North pole to south pole
C) East to west
D) West to east

Answer 1

Hint: A magnet moment is a quantity reflecting a magnet’s power and direction, or any entity generating a magnetic field. More simply, a magnet moment refers to a magnetic dipole moment, the magnetic moment part that a magnetic dipole may reflect. The magnet dipole is the north magnetic pole just a short distance away from the magnetic South Pole.

Complete solution:
The magnet moment is the magnet power and orientation for a magnetic field or other object. Electrical current loops (such as electromagnetic), permanent magnets, moving elementary particles (such as electrons), various molecules, and even astronomical phenomena are examples of objects having magnetic moments. Specifically, the term magnetic time typically refers to a magnetic dipole moment, the magnetic moment part which may consist of the magnetic dipole equivalent: a magnetic dipole at very limited distances between the north and the South Pole.

For small enough magnets or for long enough distances the magnetic dipole portion is necessary. In addition to the dipole moment for extended artefacts, higher order terminology (such as the magnetic quadrupole moment) may be needed. In the torque encountered in a given magnetic region the magnetic dipole moment of the object can be readily described.

The same magnetic field induces greater torques on objects with greater magnetic moments. Not only is the magnitude of the magnetic moment the frequency of this torque (and its direction) dependent on its direction in relation to the direction of the magnetic field. Therefore, the magnetic moment can be thought of as a vector. From south to the north pole of the magnet (inner of the magnet) the magnetic moment path points. Magnetic dipole moments is directed from South Pole to North Pole of magnetic dipole

Hence the correct option is A.

Note: The magnetic field is equal to the magnetic dipole moment. The dipole part of the magnetic field of an object is symmetrical to its magnetic dipole moment and decreases as the reverse cube of the object is distant.