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JAMB Physics 2011 Question 50

Question 50

Electronics

The electrical properties of germanium can be altered drastically by the addition of impurities. This process is referred to as

  1. A.amplification.
  2. B.doping.
  3. C.saturation.
  4. D.bonding.
Show the answer and explanation

Answer: B (doping.)

Explanation

Adding small amounts of impurity atoms to a pure semiconductor to change its conductivity is called doping.