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Physics
When Ge crystals are doped with phosphorus atom, then it becomes
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Q. When $Ge$ crystals are doped with phosphorus atom, then it becomes
Semiconductor Electronics: Materials Devices and Simple Circuits
A
Insulator
13%
B
p-type
35%
C
n-type
45%
D
Superconductor.
6%
Solution:
Phosphorus is pentavalent. When $Ge$ crystals are doped with phosphorus atom, then it becomes $N -$ type.