Analog Electronics
A schottky device is a

 Minority carrier device.
  Majority carrier device.
 Fast recovery device.
 Both B and C.

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Analog Electronics
The typical input stage of an opamp has a

  differential input and differential output.
  single - ended input and differential output.
  single - ended input and single-ended output.
  differential input and single - ended output.

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Analog Electronics
Optocouplers combine

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

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