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Physics
The correct statement variation of the conductivity of semiconductors like Ge and Si is given by
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Q. The correct statement variation of the conductivity of semiconductors like Ge and Si is given by
Semiconductor Electronics: Materials Devices and Simple Circuits
A
Increases when it is doped with tetravalent impurity
0%
B
Increases when it is doped with pentavalent or trivalent impurity
67%
C
Increases when it is doped with pentavalent impurity and decreases when it is doped with trivalent impurity
22%
D
Decreases when it is doped with pentavalent impurity and increases when it is doped with trivalent impurity.
11%
Solution:
Correct answer is (b) Increases when it is doped with pentavalent or trivalent impurity