Q. No.
1. \(128\pi^2\)
2. \(50\pi^2\)
3. \(1280\pi^2\)
4. \(5\pi^2\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
1. \(BA\) and \(CD\)
2. \(AB\) and \(CD\)
3. \(BA\) and \(DC\)
4. \(AB\) and \(DC\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. \( \mathrm M \over 2\)
2. \( \mathrm {2 M}\)
3. \(\)\(\frac{\mathrm{M}}{\sqrt{3}}\)
4. \(\mathrm M\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| 1. | \(M\) | 2. | \(\dfrac{M\pi}{2}\) |
| 3. | \( \dfrac{M}{2\pi}\) | 4. | \(\dfrac{2M}{\pi}\) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. \(\frac{3 M}{\pi}\)
2. \(\frac{4M}{\pi}\)
3. \(\frac{ M}{\pi}\)
4. \(\frac{2 M}{\pi}\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe following figures show the arrangement of bar magnets in different configurations. Each magnet has a magnetic dipole. Which configuration has the highest net magnetic dipole moment?
| 1. |  |
2. |  |
| 3. |  |
4. |  |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA bar magnet of length \(l\) and magnetic dipole moment \(M\) is bent in the form of an arc as shown in the figure. The new magnetic dipole moment will be:
| 1. | \(\dfrac{3M}{\pi}\) | 2. | \(\dfrac{2M}{l\pi}\) |
| 3. | \(\dfrac{M}{ 2}\) | 4. | \(M\) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA vibration magnetometer placed in a magnetic meridian has a small bar magnet. The magnet executes oscillations with a time period of 2 s in the earth's horizontal magnetic field of 24 T. When a horizontal field of 18 T is produced opposite to the earth's field by placing a current-carrying wire, the new time period of the magnet will be:
1. 1 s
2. 2 s
3. 3 s
4. 4 s
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTwo identical bar magnets are fixed with their centres at a distance d apart. A stationary charge Q is placed at P in between the gap of the two magnets at a distance D from the centre O as shown in the figure:
The force on the charge Q is in:
1. direction along OP
2. direction along PQ
3. direction perpendicular to the plane of paper
4. zero
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. \(0.6\) J
2. \(12\) J
3. \(6\) J
4. \(2\) J
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
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