Analog Electronics
The universal bias stabilization circuit is the most popular because

  IC equals to IE.
  IC does not depend on transistor characteristic.
  voltage divider is heavily loaded by transistor base .
  its β sensitivity is low .

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Analog Electronics
The magnitude of electric current ICBO

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

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