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JAMB Physics 2001 Question 47

Question 47

Electronics

A transistor functions mainly as a

  1. A.switch and an amplifier
  2. B.rectifier and an amplifier
  3. C.charge storer and an amplifier
  4. D.charge storer and a switch.
Show the answer and explanation

Answer: A (switch and an amplifier)

Explanation

A transistor's main uses are as an amplifier (a small base current controls a large collector current) and as an electronic switch.