Two Point Charges of the Same Charge

A function to calculate the electric potential energy of two identical charges:

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The electric field of two identical charges:

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The electric potential of a two identical charges:
(The contours represent factors of 10 difference in energy.)

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Both the electric field and electric potential of two identical charges on the same plot:
(Note how the field is always perpendicular to the equipotential lines.)

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A 3-D view of the electric potential of two identical charges:

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