First slide

Classification of semi-conductors

Question

In a silicon crystal, the valence and conduction band are separated by a forbidden band of energy

Easy

A

0.3 eV
B

0.7 eV
C

1.1 eV
D

0.11 eV

Solution

The correct choice is (3), At room temperature the forbidden energy gap for Si is observed and that for Si is 1.1 eV.

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