Correct Answer - Option 2 : Less than one but positive
CONCEPT:
- The measurement of how much a magnetic material will be magnetized in a given magnetic field is called as magnetic susceptibility.
- It is denoted by χ.
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Magnetic susceptibility is the ratio of magnetization and the applied magnetizing field intensity.
Magnetic Susceptibility (χ) = Magnetization/magnetizing field intensity
| Diamagnetic Substance |
Paramagnetic substances |
Ferromagnetic substances |
| Diamagnetic substances are those which develop feeble magnetization in the opposite direction of the magnetizing field. |
Paramagnetic substances are those which develop feeble magnetization in the direction of the magnetizing field. |
Ferromagnetic substances are those which develop strong magnetization in the direction of the magnetizing field. |
| Such substances are feebly repelled by magnets and tend to move from stronger to weaker parts of a magnetic field. |
Such substances are feebly attracted by magnets and tend to move from weaker to stronger parts of a magnetic field. |
They are strongly attracted by a magnet and tend to move from weaker to the stronger part of a magnetic field. |
|
Magnetic susceptibility is small and negative i.e. -1 ≤ χ ≤ 0. |
Magnetic susceptibility is small and positive i.e. χ > 0 |
Magnetic susceptibility is very large and positive i.e. χ > 1000 |
|
Examples: Bismuth, copper, lead, zinc, etc. |
Example: Manganese, aluminum, chromium, platinum, etc. |
Example: Iron, cobalt, nickel, gadolinium, and alloys like alnico |
The magnetic susceptibility of a paramagnetic material is Less than one but positive.
