Needles `N_(1) , N_(2), and N_(3)` are made of a ferromagnetic, a paramagnetic and a diamagnetic substance respectively . A magnet when brought close to them will
A
attract `N_(1) and N_(2)` strongly but repel `N_(3)`
B
attract `N_(1)` strongly, `N_(2)` weakly and repel `N_(3)` weakly
C
attract `N_(1)` strongly, but repel `N_(2) N_(3)` weakly
D
attract all three of them
Text Solution
Verified by Experts
The correct Answer is:
B
Ferromagnetic substance has magnetic domains whereas paramagnetic substances have magnetic dipoles which get attracted to a magnetic field. Diamagnetic substances have magnetic field due to their orbital motion of electrons these substances are repelled.
Topper's Solved these Questions
MOVING CHARGES AND MAGNETISM
SUNIL BATRA (41 YEARS IITJEE PHYSICS)|Exercise MCQs(d )|1 Videos
Three identical bars A, B and C are made of different magnetic materials. When kept in a uniform magnetic field, the field lines around them look as follows: Make the correspondence of these bars with their material being diamagnetic (D), ferromagnetic (F) and paramagnetic (P):
A: Above curie-point a ferromagnetic substance behaves as a paramagnetic substance. R: Magnetic susceptibility of a diamagnetic substance increases with rise in temperature.
SUNIL BATRA (41 YEARS IITJEE PHYSICS)-MOVING CHARGES AND MAGNETISM-MCQs(d )