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State and explain Coulombs law




State:                                                                                                          Coulombs law of electrostatics state that the force between two point charges at rest directly proportional to the product to their strength and is in versuly proportional to the square of the distance between them.






Explain:  

 In the two stationary charges q1 and q2 in a homogeneous medium and r is the distance between them as shows in fig. If the repulsive force F between them. Accordaing to the Coulombs we can write,




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