State Coulomb's law of force between …
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Yogita Ingle 5 years, 2 months ago
Coulomb's law in electrostatic states that a charge at rest q1 applies a force F on the other charge q2, also at rest, which are separated by a distance r such that the force is directly proportional to the product of both charges and inversely proportional to the square of the distance between them.
∴ F∝ q1q2 and F ∝ 1/ r21
Thus we get F ∝ q1q2/r2
⟹ F = kq1q2/r2 where k= 1/4πϵo
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