Start learning →

Energy gap (band gap) of pure silicon at room temperature:

A5 eV (insulator)
B≈ 1.1 eV
C0 eV
D12 eV
Answer & Solution
Correct answer: B. ≈ 1.1 eV
Si band gap ≈ 1.1 eV. Ge: 0.7 eV. GaAs: 1.43 eV. Small enough that thermal energy can promote some electrons to conduction band at room temperature → semiconducting.
Practise this question with Quill — JEE Advanced →

Keep practising Semiconductor Electronics

Browse all Semiconductor Electronics questions for JEE Advanced, or explore more Physics topics.

Start a Semiconductor Electronics lesson →
Related questions
A p-n junction diode is forward biased when:True or false: classifying materialsComplete what decides the class of a materialComplete the resistivity comparisonSpot the odd one outOrder the classification of a materialPure and impureTrue or false: devices