Electrical Engineering : Rectifiers And Converters QUESTIONS AND ANSWERS :: part2 : 21 to 25
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
21.Selenium rectifier can be operated at temperatures as high as |
| 25�C |
| 40�C |
| 60�C |
| 75�C |
22.It is the_______of the transformer on which the magnitude of angle of overlap depends. |
| resistance |
| capacitance |
| leakage reactance |
| any of the above |
23.In a grid control of mercury arc rectifiers when the grid is made positive relative to cathode, then it the electrons on their may to anode. |
| accelerates |
| decelerates |
| any of the above |
| none of the above |
24.The applications of selenium rectifiers are usually limited to potential of |
| 10 V |
| 30 V |
| 60 V |
| 100 V |
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