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CBSE - XII Science - Physics - Current Electricity

Draw temparature- resistivity graphs for an ohmic resistor, super conductor, metallic conductor and

Asked by 27th February 2008, 5:22 PM
Answered by Expert


Dear Student,

Kindly refer to page 104 of your Ncert text book part I. In an ohmic resistor the resistivity remains constant with temperature. So the graph will be a straight line parallel to the x axis.

In a metallic resistor like copper, with increase in temperature the resistivity increases.

In case of a super conductor at temperatures below a certain critical temperature the resistivity is zero, as temp increases, the resistivity increases.


Topper Expert

Answered by Expert 20th May 2008, 9:51 AM

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