Electric field lines point toward a negative point charge

Steps:

• Electric field lines indicate the direction a positive test charge would move.
• For a negative point charge, the field points toward the charge due to attraction.
• Lines are radial and straight, emerging from infinity and converging at the charge.
• Select the diagram with arrows directed inward to the central point.

Why B is correct:

• Arrows point toward the charge, matching the definition that field lines converge on negative charges (from Coulomb's law, $\vec{E} = \frac{kq}{r^2} \hat{r}$, where reverses for ).

Why the others are wrong:

• A: Arrows point away, indicating a positive charge.
• C: Lines form loops, violating the radial pattern for point charges.
• D: Lines diverge irregularly, not showing uniform radial convergence.

Final answer: B