Exam-style question
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In an electric field-line diagram, how would you determine the direction of the electric field at a given point?.
Model answer
What a good answer should say
- The direction of the electric field at a point is determined by the direction of the electric field lines at that point.
- The field lines point away from positive charges and towards negative charges, indicating the direction a positive test charge would move.
Explanation
Why this works
This answer effectively explains how to ascertain the direction of the electric field using field lines, showing comprehension of the relationship between charge and field direction. The question assesses the ability to interpret electric field diagrams accurately.
Common mistake
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