- 1(current)
Q. No.
Unlock IMPORTANT QUESTION
This question was bookmarked by 5 NEET 2025 toppers during their NEETprep journey. Get Target Batch to see this question.
✨ Perfect for quick revision & accuracy boost
Buy Target Batch
Access all premium questions instantly
A regular array of identical vertical current-carrying wires, each passing through a horizontal table, is arranged as shown in the figure (with the direction of current flow indicated). Where are diamagnetic particles most likely to accumulate if they are scattered on the table?
| 1. | Around regions such as \(A.\) |
| 2. | Around regions such as \(B.\) |
| 3. | In circular regions around individual wires such as \(C.\) |
| 4. | Uniformly everywhere. |
Subtopic: Magnetic Materials |
Level 4: Below 35%
Please attempt this question first.
Hints
Please attempt this question first.
Two materials \(A-a\) paramagnetic substance, and \(B-a\) diamagnetic substance are mixed together in equal amounts (equimolar) and made into a solid. They do not react or interact otherwise with each other. The mixture is expected to be:
1. Paramagnetic
2. Diamagnetic
3. Ferromagnetic
4. Non-magnetic
1. Paramagnetic
2. Diamagnetic
3. Ferromagnetic
4. Non-magnetic
Subtopic: Magnetic Materials |
Level 3: 35%-60%
Hints
Given below are two statements:
| Statement I: | The self-inductance of a solenoid is increased greatly when a ferromagnetic material is inserted into the core. |
| Statement II: | The inductance of solenoid becomes negative when a diamagnetic substance is introduced into its core. |
| 1. | Statement I is incorrect and Statement II is correct. |
| 2. | Both Statement I and Statement II are correct. |
| 3. | Both Statement I and Statement II are incorrect. |
| 4. | Statement I is correct and Statement II is incorrect. |
Subtopic: Magnetic Materials |
Level 3: 35%-60%
Hints
A sample of magnetic material is placed in a magnetic field. As the magnetic field is increased, its magnetisation increases and finally, it becomes constant — even if the field is increased further.
Now, the temperature of the sample is decreased. The magnetisation:
Now, the temperature of the sample is decreased. The magnetisation:
| 1. | increases |
| 2. | decreases |
| 3. | remains unchanged |
| 4. | decreases first and then increases |
Subtopic: Magnetic Materials |
Level 3: 35%-60%
Hints
A paramagnetic substance is placed within the field of a solenoid and the current passing through the coils is doubled. The magnetic field within the substance:
| 1. | will double |
| 2. | will remain constant |
| 3. | will increase but only slightly |
| 4. | will decrease slightly |
Subtopic: Magnetic Materials |
Level 3: 35%-60%
Hints
A ferromagnetic material consists of domains in which the magnetic moments of the atoms are in the same direction within each domain. However, the domains are randomly oriented. A ferromagnetic material is placed in an external magnetic field. Then,
| 1. | all the domains grow in size. |
| 2. | all the domains shrink in size. |
| 3. | some domains grow in size, others shrink. |
| 4. | domains rotate in the magnetic field. |
Subtopic: Magnetic Materials |
Level 3: 35%-60%
Hints
In a ferromagnetic material, below the curie temperature, a domain is defined as:
| 1. | a macroscopic region with zero magnetization. |
| 2. | a macroscopic region with consecutive magnetic dipoles oriented in opposite directions. |
| 3. | a macroscopic region with randomly oriented magnetic dipoles. |
| 4. | a macroscopic region with saturation magnetization. |
Subtopic: Magnetic Materials |
Level 3: 35%-60%
JEE
Please attempt this question first.
Hints
Please attempt this question first.
Unlock IMPORTANT QUESTION
This question was bookmarked by 5 NEET 2025 toppers during their NEETprep journey. Get Target Batch to see this question.
✨ Perfect for quick revision & accuracy boost
Buy Target Batch
Access all premium questions instantly
When cooled below \(4.2\) K, mercury becomes a superconductor, which means it has no electrical resistance. When a current is passed through mercury under these conditions, which one of the following effects will be present?
(a) thermal
(b) chemical
(c) magnetic
Choose the correct option from the given ones:
| 1. | (a) and (c) only |
| 2. | (a), (b) and (c) |
| 3. | (b) only |
| 4. | (c) only |
Subtopic: Magnetic Materials |
55%
Level 3: 35%-60%
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: Magnetic Materials |
59%
Level 3: 35%-60%
NEET - 2024
Hints
- 1(current)
Q. No.
© 2026 GoodEd Technologies Pvt. Ltd.