Analog Electronics
The voltage across the zener resistance is usually

  measured in volts.
  large.
  subtracted from the breakdown voltage.
  small.

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Analog Electronics
For transistor action

  the base region must be very thin and lightly doped.
  Je must be forward biased and Jc should be reverse biased.
  the emitter should be heavily doped.
  all of these.

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Analog Electronics
Why is silicon preferred than germanium ?

 Silicon has higher tolerance to temperature
 Current sensitivity of silicon with temperature is less
 Leakage current due to minority charge carrier is less in silicon
 All the above

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