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JEE • PHYSICS • MAGNETISM AND MATTER
Magnetism and matter practice · Mixed difficulty
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Practice format and chapter quiz
These sets use single-correct-answer MCQs. They do not cover every JEE Main or JEE Advanced question format and are not full-length mock papers.
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Showing 331-335 of 335 questions
331
Medium
331 of 335
Remembering
+4 | -1
The value of relative magnetic permeability of
superconductors is:
superconductors is:
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Correct option: A
0
Option A (0) is correct because superconductors are perfectly diamagnetic, expelling all magnetic fields, resulting in a relative permeability of 0.
332
Medium
332 of 335
Remembering
+4 | -1
The earth's magnetic field varies with the ______
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Correct option: C
both position and time
Option C (both position and time) is correct because the Earth's magnetic field strength and direction vary depending on location and also change over time due to various factors within the Earth.
333
Medium
333 of 335
Understanding
+4 | -1
What happens, when a magnetic substance is
heated?
heated?
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Correct option: A
It loses its magnetism
Option A is correct because heating a magnetic substance above its Curie temperature causes it to lose its magnetism due to the randomization of atomic magnetic moments.
334
Medium
334 of 335
Analyzing
+4 | -1
Assertion(A): Steel is attracted by a magnet.
Reason (R): Steel is not a magnetic substance.
Reason (R): Steel is not a magnetic substance.
View answer and explanation
Correct option: C
If (A) is true but the (R) is false
Option C (If (A) is true but the (R) is false) is correct because steel is attracted by a magnet, but steel is a magnetic substance.
335
Medium
335 of 335
Understanding
+4 | -1
If the liquid in a U tube rises to a high level in
the limb placed between poles of an
electromagnet, then the liquid is
the limb placed between poles of an
electromagnet, then the liquid is
View answer and explanation
Correct option: C
paramagnetic
Option C is correct because paramagnetic materials are attracted to magnetic fields, causing the liquid to rise between the poles of the electromagnet.
Revision notes and key takeaways
Review MAGNETISM AND MATTER in your textbook or class notes, then use this set to check your understanding.
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