1.

1. I-V graph for a metallic wire at twodifferent temperatures 11 andshown in the figure below. Which of thetwo temperature is lower and why?T2 is asDelhi 2015T.

Answer»

The slope of the given graph gives us the inverse of resistance .resistance of a material increases with increasing temperature because the collision between the molecules increases. In the given graph , given T2 has smaller slope and hence corresponds to higher resistance .Therefore,T2>T1



Discussion

No Comment Found

Related InterviewSolutions