The fig. shows the distribution of three charges -Q, +Q and -Q on the X-axis. Which of the following figures shows the possible electric field lines for the distribution?

Question

G1 Physics · Accepted Answer

Step 1: Electric field is perpendicular to equipotential surfaces and points from higher to lower potential: 𝐄 = -∇V. Step 2: Closer equipotential spacing means larger |E|; field-line density likewise represents field strength. Step 3: Read the relative spacing/direction from the figure. Final: Option D.