Analog Electronics
The main job of a voltage regulator is to provide a nearly __________________ output voltage.

  fluctuating.
  constant.
  smooth.
  sinusoidal.

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Analog Electronics
The typical input stage of an opamp has a

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

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