Analog Electronics
In a nonlinear op-amp circuit, the

  feedback loop is never opened.
  output shape is the same as the input shape.
  opamp never saturates.
  opamp may saturate.

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Analog Electronics
The magnitude of electric current ICBO

  depends largely upon the emitter doping.
  increases with the increase in temperature.
  is generally greater in silicon than in germanium transistor.
  depends largely upon emitter-base junction base potential.

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