Identify the above structure diagram of device? 

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PGCIL NER DT (Electrical) 27 Feb 2022 Official Paper
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  1. BJT 
  2. TRIAC 
  3. Diac 
  4. MOSFET

Answer (Detailed Solution Below)

Option 2 : TRIAC 
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Detailed Solution

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The above structure is of TRIAC.

TRIAC

A TRIAC is formed by connecting two SCR in anti-parallel.

A TRIAC is a three-terminal device that conducts current in either direction when triggered.

DIAC

Bipolar Junction Transistor (BJT)

MOSFET

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