Electric circuit vs Magnetic circuit-Difference between Electric circuit and Magnetic circuit
This page on Electric circuit vs Magnetic circuit describes difference between Electric circuit and Magnetic circuit.
|What Flows is I
|What seems to flow is flux f
|The Cause of flow of current is E.M.F.
|The Cause of Flow of flux is M.M.F.
|Resistance to flow of current is offered by resistance (R)
|Resistance of flow of flux is offered by reluctance
|(i)e.m.f. is expressed in volts
|(i)m.m.f. is expressed in ampere turns.
|(ii)Current is expressed in amperes
|(ii)Flux is expressed in webers
|(iii)Current density is expressed in Amp/m2
|(iii) Flux density is expressed in wb/m2
|Resistance R=1/sA where s is Conductivity
|Reluctance=1/mA where m is permeability
|Current in an electric circuit does actually flow
|Flux in a magnetic circuit does not actually flow
|Energy is needed as long as the current flows.
|Energy is needed only to create magnetic flux but not to maintain it.
|If temperature is constant, then resistance of electric circuit is Constant and it is independant of the current strength.
|For a particular temperature, the permeability (magnetic Conductivity) depends upon the total flux.
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