Analog Electronics
For emitter bias, the voltage at the emitter is 0.7 V less than the

 collector voltage.
  base voltage.
 emitter voltage.
 ground voltage.

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

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