Electrical Engineering XYZ MCQs
Which impurity is added into semiconductor to increase its conductivity:
- Intrinsic
- Doping
- Extrinsic
- None of the above
Correct answer: 3. Extrinsic
Explanation: Extrinsic impurities are added to semiconductors through the doping process to modify their electrical properties. This is in contrast to intrinsic impurities, which are already present in the semiconductor material itself. Doping with extrinsic impurities is essential for controlling the conductivity and other electrical characteristics of semiconductors, making them suitable for various electronic applications.