Exam-style question
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If charge A is positive and charge B is negative, what is the direction of the force acting on charge A?.
- A.Towards charge B
- B.Away from charge B
- C.No force acting
- D.Depends on the distance
Model answer
What a good answer should say
- Towards charge B
Explanation
Why this works
According to Coulomb's law, opposite charges attract each other, so the force on charge A will be directed towards charge B.
Common mistake
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