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
The weber (Wb) is the SI unit for measuring magnetic flux. One weber is equal to one tesla multiplied by one square meter.
Related terms
Tesla (T): The tesla is the SI unit for measuring magnetic field strength or magnetic flux density. One tesla is equivalent to one weber per square meter.
Ampere-Turn (At): An ampere-turn is a unit used to measure magnetomotive force (MMF). It represents the product of current in amperes flowing through a coil and the number of turns in that coil.
Magnetic Flux Density: Magnetic flux density refers to how concentrated or dense the magnetic field lines are within an area. It is measured in teslas and indicates how strong a magnetic field is at a specific point.