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Published in:
2019 | OriginalPaper | Chapter
6. Mutual Inductance
Author : Afshin Izadian
Published in: Fundamentals of Modern Electric Circuit Analysis and Filter Synthesis
Publisher: Springer International Publishing
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Abstract
Electric circuits specifically when they are excited by AC sources can transfer energy either by direct electric connection or through magnetic coupling. Consider an inductor with N turns of winding. The current i passing through this inductor generates a magnetic flux ϕ around the windings. This flux creates a magnetic field that starts from the North Pole and ends at the South Pole. When the direction of current changes, the location of north and south poles changes which causes a change in direction of flux but still from the North Pole to the South Pole (Fig. 6.1). The time variations in the flux generates a voltage in the coil that is measured by: