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Definition of "Hopkinson's Law" |
In electronic circuits, Ohm's law is an empirical relation between the EMF E applied across an element and the current I it generates through that element. It is written as:E = IR where R is the electrical resistance of that material. Hopkinson's law is a counterpart to Ohm's law used in magnetic circuits. The law is named after the British electrical engineer, John Hopkinson. It states that F=R m where F is the magnetomotive force MMFacross a magnetic element is the magnetic flux through the magnetic element, and R m is the magnetic reluctance of that element. |
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