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Q. No.| 1. | remain constant |
| 2. | increase slightly |
| 3. | increase proportionately with the current |
| 4. | decrease |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA 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. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. Paramagnetic
2. Diamagnetic
3. Ferromagnetic
4. Non-magnetic
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
| 1. | the \(y\)-component of the magnetic field \(=0\) |
| 2. | the \(x\)-component of the magnetic field \(=0\) |
| 3. | the \(x\)-component of the magnetic field is zero, only at the origin. |
| 4. | the \(y\)-component of the magnetic field is zero, only at the origin. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhen a bar magnet is rotated from its position parallel to the external magnetic field \(B=10^{-3}\) T to a direction opposite to the field (anti-parallel), the work done is \(3\) J.
Then, the maximum torque experienced by this magnet in this field is:
1. \(3\times10^{-3}\) N-m
2. \(3\times10^{3}\) N-m
3. \(6\) N-m
4. \(1.5\) N-m
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology(Mass of coil is \(m\), radius is \(R\))
1. \(2 \pi \sqrt{\frac{m}{I B}}\)
2. \( \sqrt{\frac{2 \pi m}{I B}}\)
3. \( 2 \pi \sqrt{\frac{I}{m B}}\)
4. \(2 \pi \sqrt{\frac{m}{2 / B}}\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| 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. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyNow, the temperature of the sample is decreased. The magnetisation:
| 1. | increases |
| 2. | decreases |
| 3. | remains unchanged |
| 4. | decreases first and then increases |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| 1. | will double |
| 2. | will remain constant |
| 3. | will increase but only slightly |
| 4. | will decrease slightly |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
| 1. | \(A\) |
| 2. | \(B\) |
| 3. | neither \(A\) nor \(B,\) since both have same energy |
| 4. | the two situations can't be compared as one is repulsive, the other attractive |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySelect Chapter Topics:
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