Abstract
According to superposition principle of electrostatic field, it is considered that electric field of free electron in electric conductor still exists and motions along with free electron. While variable motion of free electron will transmit at light velocity in electric field and form electric wave. This paper analyzed the electric field of electric wave and energy transmitted, explained and deduced law of electromagnetic induction and analyzed Maxwell equations and its physical meaning. In this paper, the author specially made deep analysis on the nature of magnetic field and concluded that constancy of light velocity is the root of magnetism.
Highlights
The theory of electromagnetism points out that electric wave and magnetic wave exist simultaneously
According to superposition principle of electrostatic field, it is considered that electric field of free electron in electric conductor still exists and motions along with free electron
While variable motion of free electron will transmit at light velocity in electric field and form electric wave
Summary
The theory of electromagnetism points out that electric wave and magnetic wave exist simultaneously. Changing magnetic fields produce changing electric fields, which in turn produce changing magnetic fields. The description of such electromagnetic wave is very lofty and it is difficult for us to imagine the specific shape of such wave. Magnetism confirms that electromagnetism wave is matter for electric wave still exists and continues transmitting after wave source stops transmitting. What is the intrinsic reason for induced electric field at any point in its surrounding space? Magnetism thinks that electric and magnetic fields are matters, what relation does it have between magnetic field and electric field? What matter is electromagnetic wave? When magnetic induction varies, what is the intrinsic reason for induced electric field at any point in its surrounding space? Magnetism thinks that electric and magnetic fields are matters, what relation does it have between magnetic field and electric field? And what is the nature of magnetic field? This paper uses very simple principles and deduction to answer these questions
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