Problem with understanding the definition of magnetic flux.

AI Thread Summary
Magnetic flux is defined as the product of magnetic field strength (B) and area (A), resulting in the equation Flux = B x A. The confusion arises from the terminology, as magnetic field strength is often expressed in terms of flux density, measured in Teslas (Webers per square meter). Magnetic flux itself is measured in Webers, which represent the total magnetic field passing through a given area. Understanding these definitions clarifies the relationship between magnetic field strength and flux. The discussion highlights the complexity of magnetic units and their historical context.
kapitan90
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Homework Statement


Probably a silly question, but I can't figure it out.

Why is magnetic flux defined as magnetic field strength per unit area if it is found by multiplying the strength of magnetic field B by area A rather than dividing by area A?

Thanks for any responses :)
 
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I think you have your terms confused. You know that a magnetic field can be represented by lines of force?
The closer the lines are the stronger the force and therefor a 'sensible' unit for magnetic FIELD STRENGTH would be 'lines per square metre'
Historically 'lines' were called Webers and therefore magnetic field strength can be given as Webers per square metre. 1 Weber per square metre is now called 1 Tesla so magnetic field strength is given in Tesla.
Magnetic field strength is also known as 'magnetic flux density' and the symbol is B.
Magnetic FLUX is flux density x Area and is given in Webers
Flux = B x A
Hope this helps .... The units in magnetism are not very user friendly
 
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I understand now, thanks for help!
 
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