MCQ practice · SSC Physics Board questions · Chapter 11: Current Electricity
Which of the following is a semiconductor?
Think it through first, then pick an option.
- a Glass
- b Gold
- c Rubber
- d Germanium
Answer and explanation
Correct answer: d Germanium
Germanium and silicon are the book's examples of semiconductors.
Why the other options are wrong
- a Glass: Glass is an insulator; the book lists plastic, rubber, wood and glass as insulators.
- b Gold: Gold is a good conductor, not a semiconductor.
- c Rubber: Rubber is an insulator, not a semiconductor.
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