Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
Permeability of free space refers to the measure of how easily a magnetic field can pass through a vacuum. It is a fundamental constant in physics that determines the strength and behavior of magnetic fields.
Related terms
Magnetic Field: A region around a magnet or current-carrying wire where magnetic forces are exerted on other objects.
The branch of physics that deals with the relationship between electricity and magnetism.
Ampere's Law: A mathematical equation that relates the magnetic field produced by an electric current to the shape and orientation of the current-carrying conductor.