JEE Main · PhysicsEasy

$The forbidden energy gap for a semiconductor is approximately$

A. $1 eV$
B. $5 eV$
C. $0 eV$
D. $10 eV$

Show correct answer & step-by-step solution

Correct answer: A — $1 eV$

Solution

Semiconductors are characterized by a small energy gap between the valence band and the conduction band. This gap is typically around 1 eV, which allows electrons to be excited thermally.

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