A solid metal sphere has a charge of -80μC and radius of 0.75 m.  What is the electric field and absolute electric potential at different distances, r, from the center of the sphere?  The + direction is away from the sphere. Include a sketch of the electric force vectors you use to set up your equations

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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.