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JAMB Physics 2010 Question 50

Question 50

Electronics

Which of the following is a pure semiconductor?

  1. A.Silicon
  2. B.Phosphorus
  3. C.Transistor
  4. D.Carbon
Show the answer and explanation

Answer: A (Silicon)

Explanation

Pure (intrinsic) silicon is a semiconductor. Phosphorus is a doping impurity and a transistor is a device, not a material.