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1. |
A single phase semiconverter is feeding a highly inductive load. The circuit has a freewheeling diode across the load and firing angle is α. During one cycle of input voltage, the total duration of conduction of freewheeling diode is |
A. | α |
B. | 2 α |
C. | 4 α |
D. | 0.5 α |
Answer» C. 4 α | |