McqMate
| Q. |
present. The order of residual magnetism is |
| A. | 2 to 3 per cent |
| B. | 10 to 15 per cent |
| C. | 20 to 25 per cent |
| D. | 50 to 75 per cent |
| Answer» A. 2 to 3 per cent | |
| Explanation: in a dc machine residual magnetism is present and it plays very important role in starting of any dc machine. it’s present because of the previous application on the same motor, it also provides some no-load voltage. | |
View all MCQs in
Electrical Drives and Controls (EDC)No comments yet