Analog Electronics
Electrons in p-type material of a semi-conductor are called as

 either minority carriers or majority carriers
 valance carriers
 majority carriers
 minority carriers

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Analog Electronics
For transistor action

  all of these.
  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.

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