Q. It is easier to start a car engine on a hot day than on a cold day. This is because the internal resistance of the car battery
A) Decreases with rise in temperature
B) Increases with rise in temperature
C) Decreases with a fall in temperature
D) Does not change with a change in temperature
Explanation
(a) Internal resistance $\propto \frac{1}{Temperature}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.