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A bold capital B, measured in tesla.
Also known as: Magnetic induction, B field, Magnetic flux density, Bold B
B is the field that exerts force on moving charge, and it is what a magnetometer measures. It is not the same as H: B includes the material's own magnetisation, which is why an iron core changes B enormously while leaving H unchanged.
Denotes magnetic flux density, the field determining the force on a moving charge, measured in tesla.
Contexts: Laboratory
Differs from magnetic field strength H by the magnetisation of the material; in a vacuum the two are proportional and in iron they are not.
Contexts: Laboratory
Is what is loosely called 'the magnetic field' in most non-specialist writing, which is why the B/H distinction so often goes unstated.
Contexts: Laboratory
A bold capital letter B, a vertical stroke with two stacked bowls to its right.