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Question
Pure silicon and germanium behave as:
Pure silicon and germanium behave as:
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Solution
The correct option is C insulators.
The outermost orbit of Si and Ge have four electrons. There are no free electrons. So pure Si and Ge act as insulators.When they are doped with impurity then come under the category of semiconductor.
Hence, option "C" is the correct answer.
The outermost orbit of Si and Ge have four electrons. There are no free electrons. So pure Si and Ge act as insulators.
When they are doped with impurity then come under the category of semiconductor.
Hence, option "C" is the correct answer.
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