Answer: Repel.
- A Attract
- B Repel
- C Do nothing
- D Cancel out
Correct answer: B. Repel
Explanation: Like charges (both positive or both negative) repel each other. Unlike charges attract.
Field lines always point from positive to negative charge, are denser where the field is stronger, and never cross; an isolated positive charge has lines radiating symmetrically outward, while a dipole's lines curve from the positive to the negative charge.
Concept context
Coulomb's law, electric field, potential, capacitors, Gauss's law.