Consequently, an emf is induced in each circuit by the changing current in the other. When two circuits carrying time-varying currents are close to one another, the magnetic flux through each circuit varies because of the changing current I in the other circuit. In other words, it is a physical quantity that expresses the effectiveness of a given device. Inductance is the property of a device that tells us how effectively it induces an emf in another device. Describe examples in which mutual inductance may or may not be desirable.Correlate two nearby circuits that carry time-varying currents with the emf induced in each circuit.By the end of this section, you will be able to:
