Topic: Electronic Devices
After firing a SCR, if the gate pulse is removed, then the current in the SCR
- A. Drops to zero
- B. Increases
- C. Decreases
- D. Remains the same
Answer: D. Remains the same
Explanation: A Silicon Controlled Rectifier (SCR) is a semi-controlled latching device. Once the SCR is turned on (fired) by applying a gate pulse and the anode current exceeds the latching current, it stays in the conducting state even if the gate pulse is removed. The current continues to flow unchanged, governed entirely by the external load circuit, until the anode current falls below the holding current.