Question

The electric potential at a point on the axial line of an electric dipole is:

• A. maximum
• B. minimum
• C. zero
• D. none of these

Hint:

Electric potential is zero on the equatorial line of a dipole.

Answer 1

The Correct Option is A

Step 1: Concept
Potential $V = \frac{kp \cos \theta}{r^{2}}$.
Step 2: Analysis
On the axial line, $\theta = 0^{\circ}$ or $180^{\circ}$, so $\cos \theta = \pm 1$.
Step 3: Conclusion
This yields the maximum magnitude of potential for a given distance.
Final Answer: (A)