NEET Physics Resistance & Resistivity MCQ Question
Which of the following statements about resistance and resistivity is correct?
Resistivity of metals increases with temperature.
Semiconductors have resistivities that decrease with rising temperature.
Insulators have low resistivities compared to metals.
The resistivity of a material is independent of temperature.
Correct Answer
Detailed Explanation
Semiconductors have resistivities that decrease with increasing temperatures, as they exhibit a characteristic behavior that allows for better conduction with higher thermal energy. This is contrasted with metals, where resistivity typically increases with temperature.
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