Answer: electric field.
- A electric field
- B magnetic field
- C gravitational field
- D null field
Correct answer: A. electric field
Explanation: The electric field is the region where a charge experiences an electric force.
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.