An SCR triggered by current pulse applied to gate-cathode can be turned OFF
- A. by applying a pulse to cathode
- B. by applying a pulse to the anode
- C. by applying another pulse of opposite polarity to the gate-cathode
- D. by reversing the polarity of the anode and cathode voltage
Answer: D. by reversing the polarity of the anode and cathode voltage
Explanation: An SCR in the ON state cannot be turned off by gate control alone; it can be turned OFF by natural or forced commutation, which reverses the polarity of the anode-cathode voltage or drops anode current below holding current.