Analog Electronics
When the diode is forward biased, it is equivalent to

  an on switch.
  an off switch.
  a high resistance.
None of these

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Analog Electronics
For an NPN transistor in normal bias

  only majority carriers cross the collector junction.
  only holes cross the collector junction.
  the emitter junction has high resistance.
  Je is forward biased and Jc is reverse biased.

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