In semiconductors at a room temperature correspond to which among the following?(a) The valence band is partially empty and the conduction band is partially filled(b) The valence band is filled and the conduction band is partially filled(c) The valence band is filled(d) The conduction band is emptyThe question was posed to me in an international level competition.This interesting question is from Intrinsic Semiconductor in portion Semiconductor Electronics : Materials, Devices and Simple Circuits of Physics – Class 12

In semiconductors at a room temperature correspond to which among the

1.	In semiconductors at a room temperature correspond to which among the following?(a) The valence band is partially empty and the conduction band is partially filled(b) The valence band is filled and the conduction band is partially filled(c) The valence band is filled(d) The conduction band is emptyThe question was posed to me in an international level competition.This interesting question is from Intrinsic Semiconductor in portion Semiconductor Electronics : Materials, Devices and Simple Circuits of Physics – Class 12
Answer» RIGHT option is (a) The valence band is partially empty and the conduction band is partially filled To elaborate: When the semiconductors are at room TEMPERATURE, the valence band of the semiconductor is partially empty, WHEREAS the conduction band of the semiconductor is partially filled with ELECTRONS.

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