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Why are Ge and Si semiconductors ?...

Why are Ge and Si semiconductors ?

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The energy gaps in Ge and Si are of the order of 1 eV . Electrons can be easily excited from valence band to the conduction band to enable them to conduct electricity . So Ge and Si behave as semiconductors.
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NEW JOYTHI PUBLICATION-SEMICONDUCTOR ELECTRONICS : MATERIALS , DEVICES AND SIMPLE CIRCUITS -EVALUATION QUESTIONS AND ANSWER
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