Question 1 • 25-26 TX-Physics B-CR
Use Coulomb’s law: F = k|q₁q₂|/r². Substituting the values gives F = (8.99 × 10⁹)(6 × 10⁻⁶)(2 × 10⁻⁶)/(0.1)² ≈ 10.8 N, so the correct choice is B, 10.8 N. Since both charges are positive, they repel; particle q₂ moves away from q₁.
AI-written and checked against the verified answer.