Exam-style question
Try this first
In an exam explanation, what should you write after calculating potential difference from energy and charge?.
- A.State the voltage and explain that it represents energy transferred for each coulomb of charge.
- B.State the force and explain that it represents weight per unit mass.
- C.State the current and explain that it represents energy per second.
- D.State only the number, because units are optional in A-Level Physics.
Model answer
What a good answer should say
- The correct option is State the voltage and explain that it represents energy transferred for each coulomb of charge.
Explanation
Why this works
The other options confuse potential difference with current, force, resistance, power, or a missing-unit answer.
Common mistake
No common mistake is linked to this question yet.