HARD
12th West Bengal Board
IMPORTANT
Earn 100

Needles and are made of a ferromagnetic, paramagnetic and diamagnetic substance respectively. Magnet when brought close to them will
(a)attract and strongly but repel
(b)attract strongly, weakly and repel weakly
(c)attract all three of them
(d)attract strongly, but repel and weakly

50% studentsanswered this correctly

Important Questions on Magnetic Properties of Matter
EASY
12th West Bengal Board
IMPORTANT
Curie-Weiss law is obeyed by iron

EASY
12th West Bengal Board
IMPORTANT
A frog can be levitated in magnetic field produced by a current in a vertical solenoid placed below the frog. This is possible because the body of the frog behave as

MEDIUM
12th West Bengal Board
IMPORTANT
The magnetic susceptibility of a material of a rod is The absolute permeability of vacuum is The absolute permeability of the material of rod is

EASY
12th West Bengal Board
IMPORTANT
Among the following properties describing diamagnetism identify the property that is wrongly stated

EASY
12th West Bengal Board
IMPORTANT
Which one of the following substances should have crystalline structure ?

EASY
12th West Bengal Board
IMPORTANT
All substances show the property of

HARD
12th West Bengal Board
IMPORTANT
A soft iron ring has a mean diameter of and an area of cross-section . It is uniformly wound with turns carrying a current of and the magnetic flux in the iron is . What is the relative permeability

EASY
12th West Bengal Board
IMPORTANT
The most appropriate curve for a paramagnetic substance, shown in Fig. is 11.16
