๐Ÿ’กap physics c: e&m review

Coulomb's constant

Written by the Fiveable Content Team โ€ข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโ€ขWritten by the Fiveable Content Team โ€ข Last updated September 2025

Definition

Coulomb's constant, denoted as k, is a proportionality constant that relates the electrostatic force between two charged objects to their charges and the distance between them.