What is the electric potential energy between two protons each of charge q and at a distance of r apart? (Permittivity of free space = εo)

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A. 4πεoq²r
B. qr/4πεo
C. q/4πεor
D. q²/4πεor
E. q²/4πεor

Correct Answer:

Option C – q/4πεor

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