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Q. |
A single-phase voltage controller, using one SCR in anti parallel with a diode, feeds a load R and Vs = 230 V. For a firing angel of 90° for the SCR, the PMMC voltage connected across R would read |
A. | 0 |
B. | 51.8 V |
C. | –51.8 V |
D. | –36.82 V |
Answer» C. –51.8 V |
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