n-p-n transistors are preferred to p-n-p transistors

Options :
  1. low cost
  2. low dissipation of energy
  3. capable of handling large power
  4. electrons which have high mobility than holes and hence high mobility of energy
Answer and Explanation :-

Answer: Option 4

Explanation:

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There are many things in the deep waters and seas and lands may change. And it is not our part here to take thought only for a season, or for a few lives of Men, or for a passing age of the world. We should seek a final end of this menace, even if we do not hope to make one.
-J.R.R. Tolkien The Fellowship of the Ring