Selected MCQ

Current Question
Which material is semiconductor?
  • A. Copper
  • B. Silicon
  • C. Rubber
  • D. Glass
Correct Answer: B
Explanation:
Silicon has intermediate conductivity.
Related Question 1
In a semiconductor, a p-type material is produced by doping silicon with:
  • A. Pentavalent atoms
  • B. Noble gases
  • C. Trivalent atoms
  • D. Isotopes of silicon only
Correct Answer: C
Explanation:
Trivalent dopants create holes as majority carriers.
Related Question 2
Which structure contains genetic material in eukaryotes?
  • A. Ribosome
  • B. Nucleus
  • C. Golgi
  • D. Lysosome
Correct Answer: B
Explanation:
DNA is stored in nucleus.