MCQOPTIONS
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| 1. |
A step up transformer operates on a 230 V line and supplies a current of 2 ampere. The ratio of primary and secondary winding is 1:25. The current in primary is |
| A. | 25 A |
| B. | 50 A |
| C. | 15 A |
| D. | 12.5 A |
| Answer» C. 15 A | |