Analog Electronics
What is true about the breakdown voltage in a zener diode?

  It decreases when electric current increases.
  It equals the electric current times the resistance.
  It is approximately constant.
  It destroys the diode.

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Analog Electronics
For transistor action

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

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