Same chapter3 marksDifficulty: Medium
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Two point charges of 1 μC each are placed 1 m apart in air. Calculate the force between them. Take 1/4πε0 = 9 × 109 N m2 C−2.
Original Khojo Papers practice question — not from a past board paper.
Answer
9 × 10−3 N, and the force is repulsive.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
F = kq1q2/r2 = 9 × 109 × (10−6)2 ÷ 1 = 9 × 10−3 N.
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