Electric potential V due to point charge q at distance r:
Akq/r
Bkq/r²
Ckq²/r
D-kq/r
Answer & Solution
Correct answer: A. kq/r
V = kq/r (taking V → 0 at infinity). Note: V varies as 1/r, while E varies as 1/r². They have different distance dependence — E = -dV/dr.
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