Moderate

Silicon controlled rectifier can be turned on____________?

Correct answer: A. By applying a gate pulse and turned off only when current becomes zero

  • A. By applying a gate pulse and turned off only when current becomes zero
  • B. And turned off by applying gate pulse
  • C. By applying a gate pulse and turned off by removing the gate pulse
  • D. By making current non zero and turned off by making current zero

Explanation

An SCR is triggered into conduction by a gate pulse, but the gate cannot turn it off. It turns off only when anode current falls below the holding current, usually at a natural current zero.

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