Question

The hysteresis cycle for the material of permanent magnet is
(A) short and wide.
(B) tall and narrow.
(C) tall and wide.
(D) short and narrow.

Answer 1

Hint: Permanent magnets are materials where the magnetic field of the material is produced by the interior construction of the material itself. There is also a magnetic field that is produced by the orbits of the electrons as they travel around the nucleus.

Complete step by step answer:
Inside atoms and crystals of the material that we have contain both electrons and the nucleus of the atom. The pair of the nucleus and the electrons themselves act like little magnets, like little spinning portions of electric charge, and they have magnetic fields fundamentally in the particles themselves.

In case of the magnetic fields of permanent magnets are the sums of the nuclear rotation, the electron rotation and the orbits of the electrons themselves. In many materials, the magnetic fields are pointing in all sorts of random directions and cancel each other out and there's no permanent magnetism. But in certain materials, called ferromagnets, all the rotation and the orbits of the electrons will line up, causing the materials to become magnetic.

Hysteresis cycle is a four portion $B - H$ graph from where the hysteresis loss, intimidating force and of magnetic material $s$ are acquired. To acknowledge hysteresis cycle, we presume to assume that a magnetic material to use as a core around which encased wire is wound. Permanent magnets should have large coercivity and large retentivity. Therefore, the hysteresis cycle of the material should be tall and wide.

Therefore, the hysteresis cycle for the material of permanent magnet is tall and wide.

So, the correct answer is “Option C”.

Note:
Magnetic hysteresis happens when an exterior magnetic field is applied to a ferromagnet such as iron then the atomic dipoles form themselves with it. Even when the magnetic field is removed, part of the alignment will be remaining and the material has become magnetized. The magnetic fields are pointing in all sorts of random directions and cancel each other out and there's no permanent magnetism.