Multiple choice general knowledge science & technology

Forbidden energy gap is maximum for

  1. Conductors

  2. Semi-Conductors

  3. Insulators

  4. Metals
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Insulators have the largest forbidden energy gap (band gap) between valence and conduction bands, typically 3-6 eV or more. Conductors and metals have no band gap (bands overlap), while semiconductors have small band gaps (~1 eV). The large gap prevents electrons from jumping to conduction band, making insulators poor conductors.

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