MCQOPTIONS
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MCQOPTIONS
| 1. |
A copper wire of length l and diameter d has potential difference V applied at its two ends. The drift velocity is vd. If the diameter of wire is made d/3, then drift velocity becomes |
| A. | vd / 9 |
| B. | 9 vd |
| C. | vd |
| D. | vd /3 |
| Answer» D. vd /3 | |