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Which charge carriers contribute to conduction in an intrinsic semiconductor?

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Question

Which charge carriers contribute to conduction in an intrinsic semiconductor?

Options

  • Only intentionally added impurity atoms.

  • Only free electrons.

  • Both free electrons and holes.

  • Only holes.

MCQ
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Solution

A promoted electron becomes a free electron, while its vacancy forms a hole. Both free electrons and holes contribute to conduction.

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