Question Detail
Question
Find the force on two equal charges if they repel each other with a force of 0.2N when placed 500mm apart in vacuum (k=9.0×10⁹ F/m)
Correct Answer
Option C is the correct answer.
Detailed Explanation
q = r√(F/k) = 0.5√(0.2/9×10⁹) = 2.36μC. (Wait, source indicates 1.7C, check units or transcription)
Hint
Ensure distance is in meters and solve Coulomb's Law for q.