Which is the control element in an SCR?

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SDSC (ISRO) Technician B (Electronic Mechanic): Previous Year Paper (Held on 29 April 2018)
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  1. Anode
  2. Cathode
  3. Gate
  4. Grid

Answer (Detailed Solution Below)

Option 3 : Gate
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Gate the control element in the Silicon Controlled Resistor.

Gate is used to trigger the device into conduction by the application of a small voltage.

By increasing the gate current, the forward break over voltage occurs for lower values of forwarding voltage which is shown in figure

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