Analog Electronics
A pn junction/Diode is a/an

None of these
 Unidirectional Component
 Bidirectional component
 Linear component

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Analog Electronics
Optocouplers combine

 Power transistor and silicon transistor.
 IGBTs and MOSFETs.
  Infrared light emitting diode and a silicon photo transistor.
 SITs and BJTs.

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