An SCR with an inductive load has a turn-on time of 20 µs. If the gate pulse train is 2.5 kHz with a mark/space ratio of 1/10, what will happen?
Correct answer B. It will turn on
Explanation
The period is 400 µs, so each pulse lasts 400/11 ≈ 36 µs. This is longer than the 20 µs turn-on time, so the SCR receives a sufficient pulse and turns on.
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