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Application of electrical circuit analogies in magnetic circuit?
Wiki User
∙ 11y ago
- Magnetic circuit follows equation (4) that is Ni = (Ф) ( l / μA) or m.m.f(magneto motive force) = (Flux) (reluctance).
Electric circuit follows ohm's law that is E = I.R or e.m.f(electro motive force) = (current) (Resistance)
- From above point m.m.f in magnetic circuit is like as e.m.f in electrical circuit.
- Flux in magnetic circuit is similar as current in electrical circuit.
- Reluctance in magnetic circuit, S = ( l / μA) is similar to resistance R = (Ïl/A) in electric circuit.
- Permeance (= 1/reluctance) in magnetic circuit is equivalent to conductance (=1/resistance) in electric circuit.
- In magnetic circuit flux establishes but not flow like as current in magnetic circuit.
- In magnetic circuit energy needed only to establish the flux but no consistent energy need to maintain it whereas in electric circuit continuous energy needed to flow of current.
- Resistance of an electric circuit is constant (for same temperature) and is independent of current but reluctance of magnetic circuit is not constant because it depends on μ (=B/H) which is not constant and depends on B/H.
Wiki User
∙ 11y ago
Wiki User
∙ 11y agoThe main application of the 'electrical circuit analogy' for a magnetic circuit, is to teach peoplewho are already familiar with electrical circuits, the behaviour of a magnetic circuit.
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