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11th Class Physics Physical World / भौतिक जगत Question Bank 11th CBSE Physics Mathematical Tools, Units & Dimensions

  • question_answer
    How do electrical conductivity of following class of materials vary with temperature?   (i) Semiconductor   (ii) Metallic conductor   (iii) Super conductor.  

    Answer:

    (i) Conductivity of semiconductor increases with increase in temperature.   (ii) Conductivity of metallic conductor decreases with increase in temperature.   (iii) Temperature has no effect on super conductor.  


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