Analog Electronics
A zener diode

  has a barrier potential of 1 V.
  is a battery.
  has a constant voltage in the breakdown region.
  is forward biased.

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Analog Electronics
The magnitude of electric current ICBO

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

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Analog Electronics
When a transistor is connected in common emitter mode, it with have

Medium input resistance and high output resistance
Low input resistance as well as output resistance
Negligible input resistance and high output resistance
High input resistance and low output resistance

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