- 1(current)
Q. No.Two current carrying loops of wire are placed as shown in the figure, the inner loop (P) having a radius (r) which is much smaller than the radius (R) of the outer loop (Q). Both the loops are concentric, but the currents in one case are in the same sense while in the other, in the opposite sense.
In both cases, the torque on P due to Q is zero. If P is slightly rotated about a diameter, then, it will return to its initial position in:
In both cases, the torque on P due to Q is zero. If P is slightly rotated about a diameter, then, it will return to its initial position in:
| 1. | case (I) but not in case (II). |
| 2. | case (II) but not in case (I). |
| 3. | both cases (I) and (II). |
| 4. | neither of cases (I) and (II). |
From NCERT
Subtopic: Magnetic Moment |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe ratio of the radii of two circular coils is \(1:2\). The ratio of currents in the respective coils such that the same magnetic moment is produced at the centre of each coil is:
1. \(4:1\)
2. \(2:1\)
3. \(1:2\)
4. \(1:4\)
Subtopic: Magnetic Moment |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology- 1(current)
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