How is a silicon controlled rectifier turned on and off?

1. A Option A: Turned on by applying a gate pulse and turned off by removing the gate pulse
2. B Option B: Turned on and turned off by applying a gate pulse
3. C Option C: Turned on by making the current non-zero and turned off by making the current zero
4. D Option D: Turned on by applying a gate pulse and turned off only when the current becomes zero

Answer checked 11 October 2026 · How we write and check questions