🧲ap physics 2 review

Permeability of free space (μo)

Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examWritten 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.

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