The EMF induced in this way is known as dynamically induced EMF (as in a DC or AC generator). It is so called because EMF is induced in a conductor which is moving (dynamic).
Dynamically induced electromotive force (EMF) refers to the generation of voltage or electromotive force in a conductor due to its motion relative to a magnetic field, as described by Faraday’s law of electromagnetic induction.
You will also explore the differences between statically and dynamically induced EMF, discover the methods of inducing EMF, and understand the significance of Faraday’s and Lenz’s Laws.
What is dynamically induced EMF? Dynamically induced voltage occurs when either the conductor moves in a stationary magnetic field or the magnetic field moves while the conductor is stationary.
Dynamically induced emf (electromotive force) is the emf generated in a conductor when it moves through a magnetic field, causing the conductor to cut magnetic flux lines. This is a fundamental principle behind the operation of electrical generators.
Hint: The magnetic field system must be kept fixed while the conductor moves in order to generate a dynamically induced EMF (electromotive force). The magnetic field system can also be kept moving while the conductor remains stationary.
Dynamically induced emf means an emf induced in a conductor when the conductor moves across a magnetic field. The Figure shows when a conductor “A”with the length “L” moves across a “B” wb/m2.
By either moving the conductor keeping the magnetic field system stationary or moving the field system keeping the conductor stationary so that flux is cut by the conductor, the emf thus induced in the conductor is called dynamically induced emf