Question

What is the slope of resistivity-temperature graph around room temperature?​

Answer 1

Answer:

Hi.. This side Upasana..

Slope of a V-I graph gives value of 1/R , as we can see that the slope of graph 1 is greater than graph 2 ,so

1/R

1

>1/R

2

or R

2

>R

1

we know that the resistance of metals increases with increase in temperature therefore

T

2

>T

1

it means T

1

is lower because R

1

is smaller

Hope this will help you!!..