WAEC Physics 2020 Objective — Question 45
Question 45 of 50 from the West African Examinations Council (WAEC) Physics 2020 Objective paper, with the correct answer and a full explanation.
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Which of the following actions would increase the electric force between two positively charged particles?
- A. Decreasing the mass of the particles
- B. Decreasing the distance between the particlesCorrect
- C. Increasing the distance between the particles
- D. Increasing the mass of the particles
Explanation
Since F=kq1q2/r^2, F is proportional to 1/r^2. Thus, decreasing the distance between the particles will increase the electric force between them.
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