MCQOPTIONS
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| 1. |
Current velocity through a copper conductor is |
| A. | the same as propagation velocity of electric energy |
| B. | independent of current strength |
| C. | of the order of a few ^.s/m |
| D. | nearly 3 x 108 m/s |
| Answer» D. nearly 3 x 108 m/s | |