Exam-style question
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If the electric field strength between two parallel plates is 10 N/C and the distance between the plates is 0.5 m, calculate the potential difference (V) across the plates. Scenario focus: magnetic fields in a distinct A-Level Physics fields context; identify the field quantity, source, direction, and unit before selecting the answer.
Model answer
What a good answer should say
- The potential difference is 5 V.
Explanation
Why this works
The correct answer is The potential difference is 5 V.. This is correct for Electric fields because the stem is testing magnetic fields; the chosen option keeps the field quantity, source interaction, direction, and unit consistent.
The alternatives are weaker because they mix gravitational, electric, magnetic, orbital, or transformer ideas, or they attach the right number to the wrong physical meaning.
Common mistake
No common mistake is linked to this question yet.