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Question
If a sample of Ge and a sample of Si have the same impurity density are kept at room temperature
Options:
A .  both will have equal value of resistivity
B .  both will have equal - ve of resistivity
C .  resistivity of germanium will be higher than that of silicon
D .  resistivity of silicon will be higher than of Ge
Answer: Option D
Answer: (d).resistivity of silicon will be higher than of Ge

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