Answer: the coulomb.
- A the coulomb
- B the ampere
- C the volt
- D the ohm
Correct answer: A. the coulomb
Explanation: Charge is measured in coulombs (C).
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.