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Physics WAEC / WASSCE 1990 Electric Field
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)
A
4πεoq2r
B
qr/4πεo
C
q/4πεor
D
q2/4πεor
E
q2/4πεo