Two point charges, each of charge q, are situated along the x-axis. One charge is located at x = -a and the other charge is at x = a. (a) Determine the electric field at a point P along the y-axis that is a distance d above the origin. (b) Check that your answer in part (a) reduces to the expected result when d = 0.

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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.