Exam-style question
Try this first
What happens to the terminal potential difference when a load is connected to a battery?.
- A.It increases
- B.It decreases
- C.It remains the same
- D.It becomes zero
Model answer
What a good answer should say
- It decreases
Explanation
Why this works
When a load is connected, the terminal potential difference decreases due to the internal resistance of the battery, which causes some energy to be lost as heat.
Common mistake
No common mistake is linked to this question yet.