Physics WAEC

What is the electric potential at a point distance r from a proton of charge q placed in a medium of permittivity εo?
What is the electric potential at a point distance r from a proton of charge q placed in a medium of permittivity εo?What is the electric potential at a point distance r from a proton of charge q placed in a medium of permittivity εo?

A. q2/4πεor²
B. q/4πεor²
C. q²/4πεor
D. qr/4πεo
E. 4πεoq²r

Correct Answer:

Option B – q/4πεor²

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