A stationary proton is moved form point A, where the potential is 450.0 V, to point B, where the potential is 125.0 V. (a) How much work is done be the electric force? (b) What is its speed to point B ? (c) What is the electric potential energy of point A? (D) What is the electric potential energy at Point 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.