Two small spheres have the same mass and volume. One sphere has a charge of 4.00 micro Coulombs, and the other sphere has a charge of -1.00 micro Coulombs. If these two spheres are brought into brief contact with each other and then separated to a distance of 2.00 x 10^-1 metres, what is the electric force between them at this distance?

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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.