MCQOPTIONS
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MCQOPTIONS
| 1. |
A superconducting loop of radius R has self-inductance L. A uniform and constant magnetic field B is applied perpendicular to the plane of the loop. Initially current in this loop is zero. The loop is rotated by \[180{}^\circ \]. The current in the loop after rotation is equal to |
| A. | zero |
| B. | \[\frac{B\pi {{R}^{2}}}{L}\] |
| C. | \[\frac{2B\pi {{R}^{2}}}{L}\] |
| D. | \[\frac{B\pi {{R}^{2}}}{2L}\] |
| Answer» D. \[\frac{B\pi {{R}^{2}}}{2L}\] | |