Question

The current voltage graph for a given metallic conductor at two different temperatures T, and T₂ are as shown in the figure. Then -
(1) T₁ > T₂
(2) T₁ = T₂
(3) nothing can be said about T, and T₂
(4) T₁ < T₂​

Answer 1

Answer:

a

Explanation:

Correct option is

A

T  

1

​

>T  

2

​

 

Slope of the graph will give us reciprocal of resistance. Here resistance at temperature T  

1

​

 is greater than that of R  

2

​

. Since resistance of metallic wire is more at higher temperature than at lower temperature, hence T  

1

​

>T  

2

​