AP EAMCET · PHYSICS · Electrostatics
The electric potential at a point on the axis of an electric dipole depends on the distance \(r\) of the point from the dipole as
- A \(\propto r^{-1}\)
- B \(\propto r^{-2}\)
- C \(\propto r\)
- D \(\propto r^{-3}\)
Answer & Solution
Correct Answer
(B) \(\propto r^{-2}\)
Step-by-step Solution
Detailed explanation
Electric potential at point on the axial position of electric dipole is given as \[ V=\frac{1}{4 \pi \varepsilon_0} \cdot \frac{p}{r^2} \text { i.e. } \quad V \propto \frac{1}{r^2} \Rightarrow V \propto r^{-2} \]
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