A point charge q1 = +2.2μC is stationary at the origin. A second point charge q2 = −3.4μC moves from point A: (x,y) = (0.20 m, 0) to point B: (x,y) = (0.30 m, 0.30 m). a. What's the systems potential energy when q2 is at point A? b. How much work is done by the electric field in bringing q2 from point A to point B? c. How much work must be done by an external force to bring the charge from point A to 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.