1. An electric dipole consists of two charges of equal magnitude and opposite sign separated by a distance 2a. The dipole is along the x-axis and is centered at the origin. (A) Calculate the electric potential at point P on the y-axis. (B) Calculate the electric potential and Ex at point R on the positive x-axis. (20 points)
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In this case, the dipole moment is given by p = 2q * a, where q is the magnitude of the charge and a is the separation distance. Since the charges have equal magnitude and opposite sign, we can write q = -q, so p = 2q * a = -2qa. The angle θ between the dipole Show more…
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