Electrical Machines: Unit I: a. Magnetic Circuits and Electromagnetism

Magnetic Flux Density (B)

Definition, Concept, Formula, Unit

It can be defined as 'The flux per unit area (a) in a plane at right angles to the flux is known as 'flux density'.

Magnetic Flux Density (B)

It can be defined as 'The flux per unit area (a) in a plane at right angles to the flux is known as 'flux density'. Mathematically,

B = ϕ/a  wb/m2 or Tesla

It is shown in the Fig. 1.5.1.


Key Point : The unit of flux density is Wb/m2, also called tesla denoted as T.

Review Question

1. Define magnetic flux density and state its units.

 

Electrical Machines: Unit I: a. Magnetic Circuits and Electromagnetism : Tag: : Definition, Concept, Formula, Unit - Magnetic Flux Density (B)