EASY
12th ICSE
IMPORTANT
Earn 100

State how the magnetic susceptibility of a ferromagnetic material changes when it is heated.

Important Questions on Magnetic Classification of Substances

EASY
12th ICSE
IMPORTANT
Two substances A and B have relative magnetic permeabilities slightly greater and slightly less than unity respectively. What do you conclude about the magnetic nature of A and B?    
EASY
12th ICSE
IMPORTANT
How does the magnetic permeability differ for dia- , para- and ferromagnetic materials? 
EASY
12th ICSE
IMPORTANT
State, how the magnetic susceptibility is different for the three types of materials, i.e., diamagnetic, paramagnetic and ferromagnetic materials?
EASY
12th ICSE
IMPORTANT
Distinguish between diamagnetic and paramagnetic substances in terms of their relative permeability  (μr) and susceptibility(χ).  
EASY
12th ICSE
IMPORTANT
If magnetic susceptibility of a certain magnetic material is 0.0001, find its relative permeability.
EASY
12th ICSE
IMPORTANT
Arrange the three types of magnetic materials, i.e., paramagnetic, diamagnetic and ferromagnetic materials, in decreasing order of their magnetic susceptibility. 
EASY
12th ICSE
IMPORTANT
Why is soft iron considered more suitable than steel for making the core of a transformer?
EASY
12th ICSE
IMPORTANT
The earth’s core is known to contain iron. Yet geologists do not consider it as source of earth’s magnetism. Why?