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Q. |
What is done to create an extrinsic semiconductor? |
A. | refractive index is decreased |
B. | doping the material with impurities |
C. | increase the band-gap of the material |
D. | stimulated emission |
Answer» B. doping the material with impurities | |
Explanation: an intrinsic semiconductor is a pure semiconductor. an extrinsic semiconductor is obtained by doping the material with impurity atoms. these impurity atoms create either free electrons or holes. |
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