Exam-style question
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How does the electric field strength behave as the distance from a point charge increases?.
- A.It increases linearly
- B.It decreases linearly
- C.It decreases with the square of the distance
- D.It remains constant
Model answer
What a good answer should say
- It decreases with the square of the distance
Explanation
Why this works
According to Coulomb's law, the electric field strength due to a point charge decreases with the square of the distance from the charge, demonstrating inverse-square behavior.
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