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Q. No.
Subtopic: Magnetic Field & Field Lines |
91%
From NCERT
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Given below are two statements:
| Assertion (A): | Gauss's law for magnetism states that the net magnetic flux through any closed surface is zero. |
| Reason (R): | The magnetic monopoles do not exist. North and South poles occur in pairs, allowing vanishing net magnetic flux through the surface. |
| 1. | (A) is True but (R) is False. |
| 2. | (A) is False but (R) is True. |
| 3. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 4. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
Subtopic: Analogy between Electrostatics & Magnetostatics |
72%
From NCERT
NEET - 2022
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Select the correct option based on the statements:
| Statement I: | The magnetic field of a circular loop at very far away point on the axial line varies with distance as like that of a magnetic dipole. |
| Statement II: | The magnetic field due to magnetic dipole varies inversely with the square of the distance from the centre on the axial line. |
| 1. | Statement I is correct and Statement II is incorrect. |
| 2. | Statement I is incorrect and Statement II is correct. |
| 3. | Both Statement I and Statement II are correct. |
| 4. | Both Statement I and Statement II are incorrect. |
Subtopic: Analogy between Electrostatics & Magnetostatics |
54%
From NCERT
NEET - 2022
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Diamagnetic material in a magnetic field moves:
| 1. | from stronger to the weaker parts of the field |
| 2. | from weaker to the stronger parts of the field |
| 3. | perpendicular to the field |
| 4. | in none of the above directions |
Subtopic: Magnetic Materials |
80%
From NCERT
AIPMT - 2003
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NEET 2025 - Target Batch
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According to Curie's law, the magnetic susceptibility of a substance at an absolute temperature T is proportional to:
1. 1/T
2. T
3. 1/T2
4. T2
Subtopic: Curie's Law and Hysteresis (OLD NCERT) |
88%
From NCERT
AIPMT - 2003
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NEET 2025 - Target Batch
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If the magnetic dipole moment of an atom of diamagnetic material, paramagnetic material and ferromagnetic material are denoted by \(\mu_d,~\mu_p,~\text{and}~\mu_f\) respectively, then:
1. \(\mu_p= 0 ~\text{and}~\mu_f \ne0\)
2. \(\mu_d\neq 0 ~\text{and}~\mu_p=0\)
3. \(\mu_d\ne 0 ~\text{and}~\mu_f \ne0\)
4. \(\mu_d= 0 ~\text{and}~\mu_p \ne0\)
Subtopic: Magnetic Materials |
79%
From NCERT
AIPMT - 2005
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For protecting a magnetic needle, it should be placed:
| 1. | In an iron box. |
| 2. | In a wooden box. |
| 3. | In a metallic box. |
| 4. | None of these. |
Subtopic: Magnetic Materials |
From NCERT
AIPMT - 1998
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The net magnetic flux through any closed surface is:
1. negative
2. zero
3. positive
4. infinity
1. negative
2. zero
3. positive
4. infinity
Subtopic: Analogy between Electrostatics & Magnetostatics |
82%
From NCERT
NEET - 2023
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The variation of susceptibility \((\chi)\) with absolute temperature \((T)\) for a paramagnetic material is represented as:
| 1. |  |
2. |  |
| 3. |  |
4. |  |
Subtopic: Curie's Law and Hysteresis (OLD NCERT) |
53%
From NCERT
NEET - 2023
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Figure shows two small identical magnetic dipoles \(a\) and \(b\) of magnetic moments \(M\) each, placed at a separation \(2d\), with their axes perpendicular to each other. The magnetic field at the point \(P\) midway between the dipoles is:
| 1. | \(\dfrac{2 \mu_{0} M}{4 \pi d^{3}}\) | 2. | \(\dfrac{\mu_{0} M}{4 \pi d^{3}}\) |
| 3. | zero | 4. | \(\dfrac{\sqrt{5}\mu_{0} M}{4\pi d^{3}}\) |
Subtopic: Bar Magnet |
68%
From NCERT
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