MCQOPTIONS
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MCQOPTIONS
| 1. |
A bar magnet of magnetic moment \[4.0\,A-{{m}^{2}}\] is free to rotate about a vertical axis through its center. The magnet is released from rest from east-west position. Kinetic energy of the magnet in north-south position will be \[(H=25\mu T)\] |
| A. | \[{{10}^{-2}}J\] |
| B. | \[{{10}^{-4}}J\] |
| C. | \[{{10}^{-6}}J\] |
| D. | 0 |
| Answer» C. \[{{10}^{-6}}J\] | |