Question

The electric field in a region surrounding the origin and along the x-axis is uniform. A small circle is drawn with the center at the origin cutting the axes at points A, B, C, and D having coordinates (a, 0), (0, a), (-a, 0), and (0, -a), respectively, as shown in Fig. Then the potential is minimum at :

• A. A
• B. B
• C. C
• D. D

Answer 1

Answer: (A)

A

Potential decreases in the direction of electric field. Therefore point A will have minimum potential.