Electric field lines point toward negative charges

Steps:

• Electric field lines show the direction a positive test charge would move.
• A negative point charge attracts positive test charges, so field lines direct inward.
• Lines are radial and symmetric, denser near the charge.
• Select the diagram with lines converging on the central point.

Why A is correct:

• Diagram A depicts lines terminating on the negative charge, following the convention that field lines end on negative charges (Gauss's law for electric fields).

Why the others are wrong:

• B shows lines radiating outward, typical for a positive charge.
• C illustrates parallel lines, indicating a uniform field like between plates.
• D displays paired lines from source to sink, resembling a dipole.

Final answer: A