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When we convert pure semiconductor into N type the number of hole :-

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Important Questions on Semiconductor Devices

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A semiconductor is damaged by a strong current, because of
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If ne and nh are the number of electrons and holes in a semiconductor heavily doped with phosphorus, then 
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When the conductivity of a semiconductor is only due to the breaking of the covalent bonds, the semiconductor is called:

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In an intrinsic semiconductor, the number of electrons and holes at room temperature are 
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In germanium crystal, the forbidden energy gap in joule is:-
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The probability of finding electrons in the conduction band of an intrinsic semiconductor at a finite temperature