Answer: q/6ε₀.
- A q/ε₀
- B q/6ε₀
- C 6q/ε₀
- D 0
Correct answer: B. q/6ε₀
Explanation: Total flux q/ε₀ divides equally among 6 faces, giving q/6ε₀ per face.
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.