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1. |
Calculate the circuit turn-off time for 3- Fully controlled rectifier if the firing angle is 110 and supply frequency is 50 Hz. |
A. | 3.8 msec |
B. | 5.2 msec |
C. | 9.3 msec |
D. | 8.7 msec |
Answer» B. 5.2 msec | |