AC power in a load can be controlled by using_____________?
Correct answer: A. two SCR's in parallel opposition
- A. two SCR's in parallel opposition
- B. two SCR's in series
- C. three SCR's in series
- D. four SCR's in series
Explanation
AC control must conduct during both positive and negative half-cycles, so two SCRs are connected in antiparallel, also called parallel opposition. Series SCRs would not provide bidirectional control by themselves.
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