By increasing the temperature, the conductivity of the semiconductor is:
Correct answer: B. Increases
- A. Decreases
- B. Increases
- C. Constant
- D. Not affected
Explanation
In semiconductors, increasing the temperature provides additional energy to electrons, enabling more of them to break free and become charge carriers. This increase in free electrons or holes leads to an increase in conductivity. Therefore, option B is correct as it recognizes this increase in electrical conductivity with temperature.Option A is incorrect because it suggests a decrease in conductivity, which is opposite to what occurs in semiconductors. Option C is incorrect because conductivity does not remain constant with temperature changes. Option D is incorrect because it implies temperature has no effect on conductivity, which is not the case in semiconductors.
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About Electrical Properties of Solids
Electrical properties of solids depend on their band structure, charge carriers and conductivity. The topic compares conductors, insulators and semiconductors, relates resistivity to temperature, and covers intrinsic and extrinsic semiconductors, donor and acceptor impurities, electron and hole conduction, and the formation of p-type and n-type materials.
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