A Uniform Rule that Can Replace the Left-Hand Rule and the Right-Hand Rule in Electromagnetics

Xin Feng Wang; Min Zhong Gao; Hong Zhi Wang

doi:10.4028/www.scientific.net/AMM.278-280.86

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 278-280A Uniform Rule that Can Replace the Left-Hand Rule...

A Uniform Rule that Can Replace the Left-Hand Rule and the Right-Hand Rule in Electromagnetics

Abstract:

The left-hand rule and the right-hand rule are widely used in electromagnetics but are often confusing. Based on an analysis of the differences and commonalities of the two rules, a uniform rule using coordinate rotation is proposed to determine the direction of the magnetic force and the induced electromotive force (emf) or the induced current in a static magnetic field. Furthermore, we discuss how to use the uniform rule to determine the direction of the induced emf or current in a moving magnetic field, which is traditionally determined by Lenz's law. The uniform rule is easy to understand and remember.