Home/
Competitive Exams/
JEE Main & Advanced/
Physics/
Semiconductors/
Question 20205
JEE Physics · Easy

Semiconductors: Energy Band — Conductor MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

Timer-based practiceDetailed answer reviewMobile-friendly flow
Energy Band — ConductorEasyQuestion 20205

Question

In a conductor at room temperature, the energy band structure shows:
  1. A
    A completely filled valence band with a large gap to conduction band
  2. B
    Overlapping valence and conduction bands or a partially filled conduction band
    Correct
  3. C
    A completely filled conduction band
  4. D
    No energy bands

Correct answer

Overlapping valence and conduction bands or a partially filled conduction band

Explanation

Conductors (metals) have either overlapping bands (e.g., Na, K) or a partially filled conduction band (e.g., Cu) → electrons can move freely at the Fermi level → high conductivity.

Review Semiconductors notesStart timed chapter practice