STANDARD Physics Conductivity and Resistivity MCQ Question
With increase in temperature the conductivity of
metals increases and of semiconductor decreases.
semiconductors increases and of metals decreases.
in both metals and semiconductors increases.
in both metal and semiconductor decreases.
Correct Answer
Detailed Explanation
Semiconductors have a negative temperature coefficient of resistivity, meaning their resistivity decreases with an increase in temperature, leading to increased conductivity. Metals, on the other hand, have a positive temperature coefficient of resistivity, so their resistivity increases with temperature, leading to decreased conductivity.
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