Exam-style question
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How does Coulomb's law describe the relationship between force and distance?.
- A.The force increases linearly with distance.
- B.The force decreases with the square of the distance.
- C.The force is independent of distance.
- D.The force increases with the cube of the distance.
Model answer
What a good answer should say
- The force decreases with the square of the distance.
Explanation
Why this works
Coulomb's law states that the electric force between two point charges is inversely proportional to the square of the distance between them. This means that as the distance increases, the force decreases rapidly, following an inverse-square relationship.
This principle is crucial for understanding how electric forces behave over distance in electric fields.
Common mistake
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