360456
The relative permeability is represented by \(\mu_{r}\) and the susceptibility is denoted by \(\chi\) for a magnetic substance. Then for a paramagnetic substance
1 \(\mu_{r} < 1, \chi>0\)
2 \(\mu_{r}>1, \chi < 0\)
3 \(\mu_{r} < 1, \chi < 0\)
4 \(\mu_{r}>1, \chi>0\)
Explanation:
The relation between relative permeability and susceptibility is \(\mu_{r}=1+\chi\) for para \(\chi>0 \Rightarrow \mu_{r}>1\)
PHXII05:MAGNETISM and MATTER
360457
Assertion : If a bar magnet made of iron is melted it looses its magnetism. Reason : A ferromagnetic material requires to have 'ordering of spins'.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Melting an iron bar magnet disrupts atomic alignment due to thermal motion, leading to loss of magnetism as magnetic domains lose coherence. Ferromagnetism \((F M)\) requires a (ordering of spins) in crystalline structure. Hence, only solid materials can possess \(FM\). So correct option is (1).
PHXII05:MAGNETISM and MATTER
360458
Assertion : A superconductor is a perfect diamagnetic substance. Reason : A superconductor is a perfect conductor.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
A superconductor, when in its superconducting state, exhibits perfect diamagnetic behavior, expelling all magnetic fields from its interior. Being a perfect conductor does not necessarily imply perfect diamagnetic behavior. Superconductivity and diamagnetism are two distinct properties, although they often coexist in superconducting materials. So correct option is (2).
NEET Test Series from KOTA - 10 Papers In MS WORD
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PHXII05:MAGNETISM and MATTER
360456
The relative permeability is represented by \(\mu_{r}\) and the susceptibility is denoted by \(\chi\) for a magnetic substance. Then for a paramagnetic substance
1 \(\mu_{r} < 1, \chi>0\)
2 \(\mu_{r}>1, \chi < 0\)
3 \(\mu_{r} < 1, \chi < 0\)
4 \(\mu_{r}>1, \chi>0\)
Explanation:
The relation between relative permeability and susceptibility is \(\mu_{r}=1+\chi\) for para \(\chi>0 \Rightarrow \mu_{r}>1\)
PHXII05:MAGNETISM and MATTER
360457
Assertion : If a bar magnet made of iron is melted it looses its magnetism. Reason : A ferromagnetic material requires to have 'ordering of spins'.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Melting an iron bar magnet disrupts atomic alignment due to thermal motion, leading to loss of magnetism as magnetic domains lose coherence. Ferromagnetism \((F M)\) requires a (ordering of spins) in crystalline structure. Hence, only solid materials can possess \(FM\). So correct option is (1).
PHXII05:MAGNETISM and MATTER
360458
Assertion : A superconductor is a perfect diamagnetic substance. Reason : A superconductor is a perfect conductor.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
A superconductor, when in its superconducting state, exhibits perfect diamagnetic behavior, expelling all magnetic fields from its interior. Being a perfect conductor does not necessarily imply perfect diamagnetic behavior. Superconductivity and diamagnetism are two distinct properties, although they often coexist in superconducting materials. So correct option is (2).
360456
The relative permeability is represented by \(\mu_{r}\) and the susceptibility is denoted by \(\chi\) for a magnetic substance. Then for a paramagnetic substance
1 \(\mu_{r} < 1, \chi>0\)
2 \(\mu_{r}>1, \chi < 0\)
3 \(\mu_{r} < 1, \chi < 0\)
4 \(\mu_{r}>1, \chi>0\)
Explanation:
The relation between relative permeability and susceptibility is \(\mu_{r}=1+\chi\) for para \(\chi>0 \Rightarrow \mu_{r}>1\)
PHXII05:MAGNETISM and MATTER
360457
Assertion : If a bar magnet made of iron is melted it looses its magnetism. Reason : A ferromagnetic material requires to have 'ordering of spins'.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Melting an iron bar magnet disrupts atomic alignment due to thermal motion, leading to loss of magnetism as magnetic domains lose coherence. Ferromagnetism \((F M)\) requires a (ordering of spins) in crystalline structure. Hence, only solid materials can possess \(FM\). So correct option is (1).
PHXII05:MAGNETISM and MATTER
360458
Assertion : A superconductor is a perfect diamagnetic substance. Reason : A superconductor is a perfect conductor.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
A superconductor, when in its superconducting state, exhibits perfect diamagnetic behavior, expelling all magnetic fields from its interior. Being a perfect conductor does not necessarily imply perfect diamagnetic behavior. Superconductivity and diamagnetism are two distinct properties, although they often coexist in superconducting materials. So correct option is (2).
360456
The relative permeability is represented by \(\mu_{r}\) and the susceptibility is denoted by \(\chi\) for a magnetic substance. Then for a paramagnetic substance
1 \(\mu_{r} < 1, \chi>0\)
2 \(\mu_{r}>1, \chi < 0\)
3 \(\mu_{r} < 1, \chi < 0\)
4 \(\mu_{r}>1, \chi>0\)
Explanation:
The relation between relative permeability and susceptibility is \(\mu_{r}=1+\chi\) for para \(\chi>0 \Rightarrow \mu_{r}>1\)
PHXII05:MAGNETISM and MATTER
360457
Assertion : If a bar magnet made of iron is melted it looses its magnetism. Reason : A ferromagnetic material requires to have 'ordering of spins'.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Melting an iron bar magnet disrupts atomic alignment due to thermal motion, leading to loss of magnetism as magnetic domains lose coherence. Ferromagnetism \((F M)\) requires a (ordering of spins) in crystalline structure. Hence, only solid materials can possess \(FM\). So correct option is (1).
PHXII05:MAGNETISM and MATTER
360458
Assertion : A superconductor is a perfect diamagnetic substance. Reason : A superconductor is a perfect conductor.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
A superconductor, when in its superconducting state, exhibits perfect diamagnetic behavior, expelling all magnetic fields from its interior. Being a perfect conductor does not necessarily imply perfect diamagnetic behavior. Superconductivity and diamagnetism are two distinct properties, although they often coexist in superconducting materials. So correct option is (2).