Q. No.Match List-I with List-II.
Choose the correct answer from the options given below:
| List-I Material |
List-II Susceptibility \((\chi)\) |
||
| \(\mathrm{(A)}\) | Diamagnetic | \(\mathrm{(I)}\) | \(\chi=0\) |
| \(\mathrm{(B)}\) | Ferromagnetic | \(\mathrm{(II)}\) | \(0>\chi\geq-1\) |
| \(\mathrm{(C)}\) | Paramagnetic | \(\mathrm{(III)}\) | \(\chi\gg1\) |
| \(\mathrm{(D)}\) | Non-magnetic | \(\mathrm{(IV)}\) | \(0<\chi<\varepsilon\) (a small positive number) |
| 1. | \(\text{A-II, B-I, C-III, D-IV}\) | 2. | \(\text{A-III, B-II, C-I, D-IV}\) |
| 3. | \(\text{A-IV, B-III, C-II, D-I}\) | 4. | \(\text{A-II, B-III, C-IV, D-I}\) |
Subtopic: Â Magnetic Materials |
 69%
Level 2: 60%+
NEET - 2024
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A sheet is placed on a horizontal surface in front of a strong magnetic pole. A force is needed to:
Choose the correct statement\((\mathrm s )\) from the options given below:
| A. | hold the sheet there if it is magnetic. |
| B. | hold the sheet there if it is non-magnetic. |
| C. | move the sheet away from the pole with uniform velocity if it is conducting. |
| D. | move the sheet away from the pole with uniform velocity if it is both, non-conducting and non-polar. |
| 1. | A and C only | 2. | A, C and D only |
| 3. | C only | 4. | B and D only |
Subtopic: Â Magnetic Materials |
 55%
Level 3: 35%-60%
NEET - 2024
Hints
Match List-I with List-II
Choose the correct answer from the options given below:
| List-I (Material) | List-II (Example) | ||
| (A) | Diamagnet | (I) | Alnico |
| (B) | Paramagnet | (II) | Copper |
| (C) | Soft ferromagnet | (III) | Aluminium |
| (D) | Hard ferromagnet | (IV) | Gadolinium |
| 1. | A-I, B-II, C-III, D-IV | 2. | A-IV, B-III, C-II, D-I |
| 3. | A-III, B-II, C-I, D-IV | 4. | A-II, B-III, C-IV, D-I |
Subtopic: Â Magnetic Materials |
 59%
Level 3: 35%-60%
NEET - 2024
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The best suited curve showing the variations of susceptibility (\(\chi\)) of a paramagnetic material in free space with temperature (\(T\)) is:
| 1. |  |
2. |  |
| 3. |  |
4. |  |
Subtopic: Â Magnetic Materials |
 84%
Level 1: 80%+
NEET - 2024
Hints
The incorrect relation for a diamagnetic material (all the symbols carry their usual meaning and \(\varepsilon\) is a small positive number) is:
| 1. | \(\mu<\mu_{0}\) | 2. | \(0\leqslant\mu_{\mathrm{r}}<1\) |
| 3. | \(-1\leqslant\chi<0\) | 4. | \(1<\mu_r<1+\varepsilon\) |
Subtopic: Â Magnetic Materials |
 61%
Level 2: 60%+
NEET - 2024
Hints
A thin diamagnetic rod is placed vertically between the poles of an electromagnet. When the current in the electromagnet is switched on, then the diamagnetic rod is pushed up, out of the horizontal magnetic field. Hence the rod gains gravitational potential energy. The work required to do this comes from:
| 1. | the current source |
| 2. | the magnetic field |
| 3. | the lattice structure of the material of the rod |
| 4. | the induced electric field due to the changing magnetic field. |
Subtopic: Â Magnetic Materials |
 54%
Level 3: 35%-60%
NEET - 2018
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Links
The magnetic susceptibility is negative for:
| 1. | paramagnetic material only. |
| 2. | ferromagnetic material only. |
| 3. | paramagnetic and ferromagnetic materials. |
| 4. | diamagnetic material only. |
Subtopic: Â Magnetic Materials |
 89%
Level 1: 80%+
NEET - 2016
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There are four light-weight-rod samples \(A,\) \(B,\) \(C,\) \(D\) separately suspended by threads. A bar magnet is slowly brought near each sample and the following observations are noted:
Which one of the following is true?
| (i) | \(A\) is feebly repelled. | (ii) | \(B\) is feebly attracted. |
| (iii) | \(C\) is strongly attracted. | (iv) | \(D\) remains unaffected. |
Which one of the following is true?
| 1. | \(C\) is of a diamagnetic material. |
| 2. | \(D\) is of a ferromagnetic material. |
| 3. | \(A\) is of a non-magnetic material. |
| 4. | \(B\) is of a paramagnetic material. |
Subtopic: Â Magnetic Materials |
 89%
Level 1: 80%+
AIPMT - 2011
Hints
The magnetic moment of a diamagnetic atom is:
1. 1
2. between zero and one
3. equal to zero
4. much greater than one
Subtopic: Â Magnetic Materials |
 73%
Level 2: 60%+
AIPMT - 2010
Hints
If a diamagnetic substance is brought near the north or the south pole of a bar magnet, it is:
| 1. | repelled by both the poles |
| 2. | repelled by the north pole and attracted by the south pole |
| 3. | attracted by the north pole and repelled by the south pole |
| 4. | attracted by both the poles |
Subtopic: Â Magnetic Materials |
 86%
Level 1: 80%+
AIPMT - 2009
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