EASY
12th ICSE
IMPORTANT
Earn 100

Would the maximum possible magnetisation of a paramagnetic substance be of the same order of magnitude as the magnetisation of a ferromagnet?

Important Questions on Magnetic Classification of Substances

EASY
12th ICSE
IMPORTANT
The susceptibility of iron is greater than that of aluminium. What do you infer from this?
EASY
12th ICSE
IMPORTANT
If a toroid has a bismuth core, will the field in the core be greater or less than when the core is empty space?
EASY
12th ICSE
IMPORTANT
A ferromagnetic material may be used as a device for storing memory. Explain it.
EASY
12th ICSE
IMPORTANT
Why should the material used for making permanent magnets have high coercivity?
EASY
12th ICSE
IMPORTANT
Write three characteristics a ferromagnetic substance should possess, if it is to be used to make a permanent magnet. Give one example of such material.
EASY
12th ICSE
IMPORTANT
Explain the term ‘hysteresis’.
EASY
12th ICSE
IMPORTANT
Distinguish between diamagnetic, paramagnetic and ferromagnetic substances. Give two examples of each.
EASY
12th ICSE
IMPORTANT

Classify materials on the basis of their behaviour in a magnetic field. Under what category does iron come?

How does the magnetic property of iron change with rise in temperature?