Answer: 1.1 eV.
- A 0 eV
- B 0.01 eV
- C 1.1 eV
- D 6 eV
Correct answer: C. 1.1 eV
Explanation: Silicon has a band gap of about 1.1 eV, typical of a semiconductor.
Conductors have overlapping bands, semiconductors have a small energy gap that can be bridged by heat or doping, and insulators have a large gap that blocks conduction.
Concept context
Band theory, p-n junction, diodes, transistors, logic gates, and integrated circuits.