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Question

What is the difference between B and H?


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Solution

B refers to magnetic field and H refers to magnetic intensity.

B

H

B is the representation of magnetic flux density.H is the representation of magnetic field intensity.
It is defined as the number of field lines of force passing through a unit area of material.A measure of the actual magnetic field within a material considered as a concentration of magnetic field lines,
The relation between magnetic field density and flux density is given by,B=μH Where μis the permeability constant.The SI unit of magnetic field intensity is Tesla
B is different for different materials and also varies with the current from which it is produced.H is a constant for different materials and depends only on the source i.e, a current carrying wire or a magnetic material.

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