Q.

The width of forbidden gap in silicon crystal is  1.1 eV. When the crystal is converted into a N-type semiconductor, the distance of fermi level from conduction band is

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a

Equal to 0.55 eV

b

Equal to 1.1 eV

c

Less than 0.55 eV

d

Greater than 0.55 eV

answer is C.

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Detailed Solution

The gap is less than 0.55 eV.

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