MCQOPTIONS
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| 1. |
What should be the current in a circular coil of radius 5cm to annul \[{{B}_{H}}=5\times {{10}^{-5}}T\] [DCE 2001] |
| A. | 0.4 A |
| B. | 4 A |
| C. | 40 A |
| D. | 1 A |
| Answer» C. 40 A | |