Question
Physics Question on Current electricity
Specific resistance of a conductor increases with
A
Increase in temperature
B
Increase in cross section area
C
Increase in cross section and decrease inlength
D
Decrease in cross section area
Answer
Increase in temperature
Explanation
Solution
The correct option is (A) : Increase in temperature
The value of ρ does not depend on the geometry but increases with an increase in temperature.