Two charged spheres 10 cm apart attract each other with a force of 3.0 x 10 6 N. What force results from each of the following changes, considered separately? a) Both charges are doubled and the distance remains the same. b) An uncharged, identical sphere is touched to one of the spheres, and then taken far away. c) The separation is increased to 30 cm.

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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.