Analog Electronics
The trapped energy of an inductive load can be feed back to the input supply through a diode known as

 Powe diode.
  Feed back diode.
 Zener diode.
 None of these.

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Analog Electronics
For an NPN transistor in normal bias

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

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