The spheres of equal mass and equal charge are separated at a distance r. Derive an expression for the quantity of charge that must be on each sphere so that the spheres are in an equilibrium where attractive and repulsive forces are balanced. How would doubling the distance between spheres affect the expression for the value of q from the previous problem. Explain.

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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.