Sphere a and b have the same initial positive charge q0. The magnitude of the repulsive electric force between the two spheres is 14.4N when separated by a distance of 0.03 m. (a) Find the initial charge q0. (b)the spheres are then allowed to touch each other and then separated. Find the electric force between them if the radius of sphere A is three times that of sphere B.

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.