In an intrinsic semiconductor, the number of electrons in the conduction band is ________ the number of holes in the valence band.
equal to
less than
greater than
none of these
A
greater than
B
equal to
C
less than
D
none of these
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Solution
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In an intrinsic semiconductor, the number density of electrons is equal to the number density of holes i.e ne=nh. Since there is no doping, no extra hole or electron is produced.
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