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E = IxR where E is Electromotive force measure in Volts

I = current flow measured in Amperes

R = total resistance in the circuit.

Volts and Amperes are named for people, so are capitalized.

Answer

What is generally (but incorrectly) called the "Ohm's Law" equation for a magnetic circuit is as follows:

magnetomotive force = flux x reluctance

Magnetomotive force (equivalent to emf in an electric circuit) is measured in amperes (but often spoken as 'ampere turns'), flux (equivalent to current in an electric circuit) is measured in webers (pronounced 'vay-bers'), and reluctance (equivalent to resistance in an electric circuit) is measured in amperes per weber (but often spoken as 'ampere turns per weber').

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