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The electric potential due to a short dipole at large distances falls off with distance r as
A1/r
B1/r²
C1/r³
D1/r⁴
Answer & Solution
Correct answer: B. 1/r²
Dipole potential V ∝ 1/r² (and dipole FIELD ∝ 1/r³). Contrast with a single point charge whose potential falls off as 1/r.
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