Asked by toppin | 22nd Jan, 2010, 08:57: PM

Expert Answer:

Dear Student'

For a metal as temperature increases resistanceR increases 

R =V/I    if you take V on x axis and I on Y axis R is the slope of teh plot

So fpr a metal ar temperature increases R increases ==> 1/ R decreases -->  Slopr of teh plot decreases.

It will be opposit for temperature decrease




Answered by  | 22nd Jan, 2010, 09:12: PM

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