MCQOPTIONS
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MCQOPTIONS
| 1. |
When a current I is set up in a wire of radius r, the drift velocity is \[{{v}_{d}}.\] If the same current is set up through a wire of radius 2 r, the drift velocity will be |
| A. | \[4{{v}_{d}}\] |
| B. | \[2{{v}_{d}}\] |
| C. | \[{{v}_{d}}/2\] |
| D. | \[{{v}_{d}}/4\] |
| Answer» E. | |