MCQOPTIONS
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| 1. |
An electric motor creates a tension of 4500 newton in a hoisting cable and reels it in at the rate of 2 m/sec. What is the power of electric motor [MNR 1984] |
| A. | 15 kW |
| B. | 9 kW P = Fv \[=4500\times 2=9000\,W=9\,kW\] |
| C. | 225 W |
| D. | 9000 HP |
| Answer» E. | |