what is emf ??????? explain???
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Electromotive force, abbreviated emf, is the electrical action produced by a non-electrical source. A device that converts other forms of energy into electrical energy, such as a battery or generator, provides an emf as its output. Sometimes an analogy to water "pressure" is used to describe electromotive force.
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Emf= electromagnetic force
It is induced when an armature is placed in a magnetic field and it is rotated then EMF is induced in the the conducting wires of armature.....
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