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Question 31401
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Electrostatics: Coulomb's Law MCQ

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Coulomb's LawEasyQuestion 31401

Question

Electrostatic force between two point charges q₁ and q₂ separated by r in vacuum is:
  1. A
    kq₁q₂/r
  2. B
    kq₁q₂/r²
    Correct
  3. C
    kq₁q₂r²
  4. D
    kq₁/r²

Correct answer

kq₁q₂/r²

Explanation

Coulomb's law: F = kq₁q₂/r² where k = 1/(4πε₀) ≈ 9×10⁹ N·m²/C².

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