Question

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

Answer 1

Answer: (A)

Decreases with rise in temperature

Answer 2

Internal resistance $\propto \frac{1}{\text{Temperature}}$