Some equipotential surfaces are shown in figure. The magnitude and direction of the electric field is ($\theta=30°$)
.
- A100 V/m making angle 120° with positive $x$ axis
- B200 V/m making an angle 60° with positive $x$ axis
- C200 V/m making an angle 120° with positive $x$ axis
- D100 V/m making an angle 60° with positive $x$ axis
✓ Correct answer: C
Want the full step-by-step reasoning?