Electrical Engineering ⇒ Topic : Induced E.M.F.
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Gaurav
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When the magnetic flux linking a conductor (or coil) changes, an e.m.f. is induced in it. This change in flux linkages can be brought about in the following two ways : (1) The conductor is moved in a stationary magnetic field in such a way that the flux linking it changes in magnitude. The e.m.f. induced in this way is called dynamically induced e.m.f. (as in a d.c. generator). It is so called because e.m.f. is induced in the conductor which is in motion. (2)The conductor is stationary and the magnetic field is moving or changing. The e.m.f. induced in this way is called statically induced e.m.f. (as in a transformer). It is so called because the e.m.f. is induced in a conductor which is stationary. It may be noted that in either case, the magnitude of induced e.mf is given by Nck/dt or derivable from this relation. | |
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Samual
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INDUCED E.M.F. The e.m.f. is induced in the conductor by two ways. It can be either (i) dynamically induced e.m.f. or (ii) statically induced e.m.f. In the first case, conductor will move in the magnetic field and flux will be non-varying. In the second case, the conductor will be stationary and the flux will be varying. | |
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