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| Q. |
In the principle of phase control |
| A. | the load is on for some cycles and off for some cycles |
| B. | control is achieved by adjusting the firing angle of the devices |
| C. | control is achieved by adjusting the number of on off cycles |
| D. | control cannot be achieved |
| Answer» B. control is achieved by adjusting the firing angle of the devices | |
| Explanation: switching devices is so operated that the load gets connected to ac source for a part of each half cycle. | |
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