Concepts Of Physics MCQ Edition [Volume 2]
- Exam
- Concepts Of Physics MCQ Edition [Volume 2]
- Subject
- Physics
- Chapter
- Semiconductors and Semiconductor Devices
Concepts Of Physics MCQ Edition [Volume 2] · Physics · Semiconductors and Semiconductor Devices
A p -type semiconductor is electrically
A -type semiconductor is electrically
Options
- Auncharged
- Bnegatively charged
- Cuncharged at but charged at elevated temperatures
- Dpositively charged
Correct answer
A. uncharged
Step-by-step solution
A -type semiconductor is formed by doping an intrinsic semiconductor with trivalent impurity atoms.
Since both the intrinsic semiconductor atoms and the impurity atoms are electrically neutral before doping, the resulting -type semiconductor has an equal total number of protons and electrons.
Therefore, the semiconductor as a whole remains electrically neutral or uncharged.
Since both the intrinsic semiconductor atoms and the impurity atoms are electrically neutral before doping, the resulting -type semiconductor has an equal total number of protons and electrons.
Therefore, the semiconductor as a whole remains electrically neutral or uncharged.