McqMate
| 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. | |
View all MCQs in
Engineering PhysicsNo comments yet