Question:
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) :
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) :
Make the correspondence of these bars with their material being diamagnetic ( D), ferromagnetic (F) and paramagnetic (P) :
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Diamagnetic bars push field lines out; ferromagnetic bars concentrate them strongly; paramagnetic bars concentrate them only weakly.
Updated On: Nov 11, 2026
- A \(\leftrightarrow\) D, B \(\leftrightarrow\) P, C \(\leftrightarrow\) F
- A \(\leftrightarrow\) F, B \(\leftrightarrow\) D, C \(\leftrightarrow\) P
- A \(\leftrightarrow\) P, B \(\leftrightarrow\) F, C \(\leftrightarrow\) D
- A \(\leftrightarrow\) F, B \(\leftrightarrow\) P, C \(\leftrightarrow\) D
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The Correct Option is B
Solution and Explanation
Diamagnetic materials expel field lines: the lines bend away from the bar and the field inside is weaker. This is bar B.
Ferromagnetic materials strongly concentrate the field lines inside them (very large permeability): the lines crowd into the bar. This is bar A.
Paramagnetic materials concentrate the lines only slightly, as in bar C.
So A is F, B is D, C is P.
Answer: (2) A \(\leftrightarrow\) F, B \(\leftrightarrow\) D, C \(\leftrightarrow\) P
Ferromagnetic materials strongly concentrate the field lines inside them (very large permeability): the lines crowd into the bar. This is bar A.
Paramagnetic materials concentrate the lines only slightly, as in bar C.
So A is F, B is D, C is P.
Answer: (2) A \(\leftrightarrow\) F, B \(\leftrightarrow\) D, C \(\leftrightarrow\) P
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