JAMB Physics 2025 Objective — Question 24
Question 24 of 40 from the Joint Admissions and Matriculation Board (JAMB) Physics 2025 Objective paper, with the correct answer and a full explanation.
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Two point charges +5μC and −3μC are 0.2 m apart. k=9×10⁹ Nm²C⁻². The force between them is approximately:
- A. 0.375 N
- B. 1.35 N
- C. 3.38 NCorrect
- D. 7.5 N
Explanation
F=kq₁q₂/r²=9×10⁹×15×10⁻¹²/0.04=3.375 N≈3.38 N.
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