MCQOPTIONS
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| 1. |
A nichrome wire used as a heater coil the resistance of 1 ohm/metre. For a heater of 1000 W at 200 V, the length of wire required will be |
| A. | 5 m |
| B. | 20 m |
| C. | 40 m |
| D. | 50 m |
| Answer» D. 50 m | |