2.5.5 Complete mathematic physical model used in electrostatics

    Let us return to electrostatics. Clearly,as a customarily used dependent variable,Ecannot be directly defined in the no-mass and no-geometry field in physics. Compatibly inlogic,the E must be impossibly used as a proper dependent variable to construct a c......查看详细>>

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2.6.1 Sign present in boundary condition

    Obviously,the whole logic foundation,used to reconstruct the boundary relation(2.5.10)here,would only be the mean value theorem initially supposed by Cauchy,which isof universal effectiveness in mathematics. So,the thinking foundation or logic premise mig......查看详细>>

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2.6.2 A needed and reasonable extension of finite discourse domain

    In physics,while only a singular charge set is discussed,it seems necessary to regard arest or unmoving in space domain charge set as simultaneously unvarying in time-varyingdomain. So,as a natural inference of the above-mentioned judgement,the whole form......查看详细>>

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3.1.1 Introduction of B

    In most of modern textbooks,formal quantity B may usually be directly called as magneticfield. However,well known to all of us,the B,which is one of the two dependent variablespresented in Maxwell’s equations,was only defined in the first as magnetic indu......查看详细>>

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3.1.2 A reasonably supposed vector potential Ψ

    According to the above-mentioned discussion,as a kind of equivalent expression of force,thecustomarily used formal quantity distribution B (x) can only be defined in a test current placed at xposition to show the action acted by the magnetic field excited......查看详细>>

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3.2.1 The raw form of Biot-Savart's formula

    And,within the special historical process to deepen understanding the essential relationbetween magnetic and current,it was H. C. Oersted who first successfully completed a test andabove all found the connection between electric current and magnetism,thou......查看详细>>

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3.2.2 Refined form of Biot-Savart's formula

    However,only considering the convenience for the following field analysis,it may be moreperfect in form to change the above-mentioned closed curve integral into another general form ofclosed integral that is defined in a given 3-dimensional space domain V......查看详细>>

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3.2.3 An indispensable boundary restriction

    We will also see,just for the existence of such a necessary prerequisite,unfortunatelywhich is always usually forgotten by most of us,the dispensable boundary condition,namely thenormal component of boundary current distribution must identically vanish,wo......查看详细>>

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3.2.4 An intrinsic character belonging to magnetostatic field

    Any formal character of a physical phenomenon can only logically rely upon the realmaterial connotation behind the phenomenon. So,while we discuss the magnetic field excitedby current source,it always is of a kind of primary significance to exactly the re......查看详细>>

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3.3.1 Construction of Ampere's law

    As same as above-mentioned,the originally derived result or the test,made by Amperehimself and based on his assumption about four “tests to show zero”,did not coincide with therelated physical reality. The unique reliable empirical equation is Biot-Savart......查看详细>>

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