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Questions  

Electric conduction in a semiconductor takes place due to 

a
Electrons only
b
Holes only
c
Both electrons and holes
d
Neither electrons nor holes

detailed solution

Correct option is C

Electrons and holes both are mobile in semiconductors and responsible for current.

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Similar Questions

In a sample of ions, a Li++ ion electron in first Bohr orbit is excited to a level by a radiation of wavelength λ. When the ion gets de-excited to the ground state in all possible ways (including intermediate emissions), a total of six spectral lines are observed. What is the value of λ ?

 (Given, h=6.63×1034Js,c=3×108ms1


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