MCQOPTIONS
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| 1. |
The figure below depicts a circular loop of radius R carrying a fixed current I. The upper half of the loop is placed in a uniform magnetic field of magnitude B, perpendicular to the plane of the paper, as shown. The magnitude of the force on the loop is (neglect gravity) |
| A. | BIR |
| B. | 2BIR |
| C. | \[\pi BIR\] |
| D. | \[2\pi BIR\] |
| Answer» C. \[\pi BIR\] | |