Given below are two statements:
Statement I: The electrical conductivity of an intrinsic semiconductor increases exponentially with increasing temperature.
Statement II: The forbidden energy gap of a semiconductor slightly decreases with increasing temperature. Choose the correct answer from the options given below:

Question

Given below are two statements:

Statement I: The electrical conductivity of an intrinsic semiconductor increases exponentially with increasing temperature.

Statement II: The forbidden energy gap of a semiconductor slightly decreases with increasing temperature. Choose the correct answer from the options given below:

TestHub · Accepted Answer

Statement I is true. The number of charge carriers (electrons and holes) in an intrinsic semiconductor increases exponentially with temperature, leading to an exponential increase in conductivity.

Statement II is also true. As temperature increases, the amplitude of atomic vibrations increases, leading to a slight decrease in the forbidden energy gap of the semiconductor.

Physics - Semiconductors Question with Solution | TestHub

Options:

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