- 1(current)
Q. No.A pendulum \(OA,\) whose bob is a circular aluminium plate, swings into a region where there is a horizontal magnetic field perpendicular to the plate. As it swings into the field, the bob's velocity:
1. increases
2. decreases
3. reverses
4. remains unchanged
1. increases
2. decreases
3. reverses
4. remains unchanged
Subtopic: Â Eddy Current |
 56%
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A thin metallic plate is allowed to fall through the space between two magnetic poles creating a horizontal magnetic field. The plate is vertical, and its face is perpendicular to the field lines as it falls. While it is entering the region of the magnetic field,
| 1. | The acceleration of the plate is equal to \(g.\) |
| 2. | The acceleration of the plate is greater than \(g.\) |
| 3. | The acceleration of the plate is less than \(g.\) |
| 4. | The plate comes to a stop and rebounds upward. |
Subtopic: Â Eddy Current |
 71%
From NCERT
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- 1(current)
Q. No.
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