We have three equal charges, which lie in the xy plane. Two of them are located on the yaxis at y = -a and y = +a, and the third one is located on the x-axis at x = a. (a) What is the potential V(x) due to these charges at a point on the x-axis? (b) Find electric field E, along the x-axis from the potential function V(x). (c) Evaluate your answers to parts (a) and (b) at the origin and at x = ∞

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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.