Answer: Newton's.
- A Newton's
- B Ohm's
- C Boyle's
- D Hooke's
Correct answer: A. Newton's
Explanation: Both Coulomb's law and Newton's law of gravitation follow an inverse-square dependence on distance.
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.