英语词汇“line of induction”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

b. (Also magnetic induction.) Magnetic flux or (more commonly) flux density, by virtue of which an electric current experiences a magnetic force; as flux density, it is a vector quantity whose magnitude at any point is the magnetic force exerted per unit length on a conductor carrying unit current in the direction that gives rise to the maximum force, and whose direction is normal to those of the current and the force. Also ( electric induction), electric flux or flux density, = displacement n. 2d (now somewhat rare). line of induction, one of the imaginary lines conceived as representing, by their direction and number, the induction at each point throughout a region.The C.G.S. unit of magnetic induction (flux density) is the gauss; in the International System of Units the tesla (= 10,000 gauss) is used.

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the world > matter > physics > electromagnetic radiation > electricity > electrically induced magnetism > [noun] > magnetic flux > induction through

magnetic induction1861

the world > matter > physics > electromagnetic radiation > electricity > electrically induced magnetism > electromagnetic induction > [noun] > line measuring

line of induction1861

flux line1898

1861 J. C. Maxwell in London, Edinb. & Dublin Philos. Mag. 21 168 The total amount of magnetic induction through a closed surface surrounding the pole of a magnet, depends entirely on the strength of that pole.

1864 J. C. Maxwell in Trans. Cambr. Philos. Soc. 10 50 If a closed conductor move transversely to the lines of magnetic induction..there will be no current.

1864 J. C. Maxwell in Trans. Cambr. Philos. Soc. 10 49 The unit cells in this case are portions of space in which unit of magnetic quantity is produced by unity [sic] of magnetizing force. The length of a cell is therefore inversely as the intensity of the magnetizing force, and its section is inversely as the quantity of magnetic induction at that point.

1873 J. C. Maxwell Treat. Electr. & Magnetism I. i. ii. 77 If dS is the element of the surface, the electric displacement through dS will be..KR cos ε dS/4π. Since we do not at present consider any dielectric except air, K = 1. We may..avoid introducing at this stage the theory of electric displacement, by calling R cos ε dS the Induction through the element dS.

1873 J. C. Maxwell Treat. Electr. & Magnetism I. i. ii. 85 We have used the phrase Lines of Force because it has been used by Faraday and others. In strictness, however, these lines should be called Lines of Electric Induction.

1873 J. C. Maxwell Treat. Electr. & Magnetism II. iii. ii. 24 The three vectors, the magnetization ℑ, the magnetic force , and the magnetic induction  are connected by the vector equation  =  + 4 πℑ.

1879 Encycl. Brit. VIII. 75/2 For ‘number of lines of force’ may of course be substituted the equivalent expressions, ‘induction through the circuit’, or ‘surface integral of magnetic induction’.

1885 O. Heaviside in Electrician 4 Sept. 311/1 There is a definite magnitude called by Maxwell ‘the magnetic induction’, which may well be called simply ‘the induction’.

1885 O. Heaviside in Electrician 4 Sept. 311/2 We pass to electric displacement, the analogue of magnetic induction (noting by the way that it had better not be called the electric induction..but be called the displacement).

1922 R. Glazebrook Dict. Appl. Physics II. 449/2 Magnetic flux, the total amount of magnetic induction through a circuit, measured by the number of lines of induction which are linked with the circuit.

1925 F. B. Pidduck Treat. Electr. (ed. 2) iii. 96 It is of some importance..to inquire what happens when the polarisation is not proportional to the electric force. We now require two vectors, P, E, not in general parallel to each other, to express the state of the medium at any point... If we define a vector D = E + 4πP, div D = o. The vector D is called the electric induction.

1938 G. P. Harnwell Princ. Electr. & Electromagn. ix. 278 By analogy with the introduction of the electric field E in electrostatics it is convenient to introduce a vector B, known as the magnetic induction, which determines the force on a current element. The element of induction is defined by the equation dF₁ = i₁ dl₁ × B₂.

1957 B. I. Bleany & B. Bleaney Electr. & Magn. v. 116 Both a magnet and a current-carrying coil are said to produce a magnetic induction B, which exerts forces on other coils or magnets.

1957 B. I. Bleany & B. Bleaney Electr. & Magn. v. 128 With a magnetic pole, H is the force vector, while the introduction of a uniform magnetic medium throughout the whole of space leaves the magnetic induction B due to a pole unchanged. In the case of a current, B is the force vector and introduction of a magnetic medium leaves H unchanged. If the magnetizable matter does not fill the whole of space, then it is the surface integral of B, the total normal induction, which remains unchanged in magnetostatics.

1962 D. R. Corson & P. Lorrain Introd. Electromagn. Fields v. 179 If the current I is distributed in space with a current density J amperes/meter², then I becomes J da and must be put under the integral sign... Thus, in the general case, the magnetic induction B at a point in space is given by B = (μ₀/4π)∫_τ(J × r₁)/r²dτ, where the integration is carried out over any volume τ which includes all the currents.

单词	line of induction
释义	> as lemmas line of induction b. (Also magnetic induction.) Magnetic flux or (more commonly) flux density, by virtue of which an electric current experiences a magnetic force; as flux density, it is a vector quantity whose magnitude at any point is the magnetic force exerted per unit length on a conductor carrying unit current in the direction that gives rise to the maximum force, and whose direction is normal to those of the current and the force. Also ( electric induction), electric flux or flux density, = displacement n. 2d (now somewhat rare). line of induction, one of the imaginary lines conceived as representing, by their direction and number, the induction at each point throughout a region.The C.G.S. unit of magnetic induction (flux density) is the gauss; in the International System of Units the tesla (= 10,000 gauss) is used. ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > electrically induced magnetism > [noun] > magnetic flux > induction through magnetic induction1861 the world > matter > physics > electromagnetic radiation > electricity > electrically induced magnetism > electromagnetic induction > [noun] > line measuring line of induction1861 flux line1898 1861 J. C. Maxwell in London, Edinb. & Dublin Philos. Mag. 21 168 The total amount of magnetic induction through a closed surface surrounding the pole of a magnet, depends entirely on the strength of that pole. 1864 J. C. Maxwell in Trans. Cambr. Philos. Soc. 10 50 If a closed conductor move transversely to the lines of magnetic induction..there will be no current. 1864 J. C. Maxwell in Trans. Cambr. Philos. Soc. 10 49 The unit cells in this case are portions of space in which unit of magnetic quantity is produced by unity [sic] of magnetizing force. The length of a cell is therefore inversely as the intensity of the magnetizing force, and its section is inversely as the quantity of magnetic induction at that point. 1873 J. C. Maxwell Treat. Electr. & Magnetism I. i. ii. 77 If dS is the element of the surface, the electric displacement through dS will be..KR cos ε dS/4π. Since we do not at present consider any dielectric except air, K = 1. We may..avoid introducing at this stage the theory of electric displacement, by calling R cos ε dS the Induction through the element dS. 1873 J. C. Maxwell Treat. Electr. & Magnetism I. i. ii. 85 We have used the phrase Lines of Force because it has been used by Faraday and others. In strictness, however, these lines should be called Lines of Electric Induction. 1873 J. C. Maxwell Treat. Electr. & Magnetism II. iii. ii. 24 The three vectors, the magnetization ℑ, the magnetic force , and the magnetic induction  are connected by the vector equation  =  + 4 πℑ. 1879 Encycl. Brit. VIII. 75/2 For ‘number of lines of force’ may of course be substituted the equivalent expressions, ‘induction through the circuit’, or ‘surface integral of magnetic induction’. 1885 O. Heaviside in Electrician 4 Sept. 311/1 There is a definite magnitude called by Maxwell ‘the magnetic induction’, which may well be called simply ‘the induction’. 1885 O. Heaviside in Electrician 4 Sept. 311/2 We pass to electric displacement, the analogue of magnetic induction (noting by the way that it had better not be called the electric induction..but be called the displacement). 1922 R. Glazebrook Dict. Appl. Physics II. 449/2 Magnetic flux, the total amount of magnetic induction through a circuit, measured by the number of lines of induction which are linked with the circuit. 1925 F. B. Pidduck Treat. Electr. (ed. 2) iii. 96 It is of some importance..to inquire what happens when the polarisation is not proportional to the electric force. We now require two vectors, P, E, not in general parallel to each other, to express the state of the medium at any point... If we define a vector D = E + 4πP, div D = o. The vector D is called the electric induction. 1938 G. P. Harnwell Princ. Electr. & Electromagn. ix. 278 By analogy with the introduction of the electric field E in electrostatics it is convenient to introduce a vector B, known as the magnetic induction, which determines the force on a current element. The element of induction is defined by the equation dF₁ = i₁ dl₁ × B₂. 1957 B. I. Bleany & B. Bleaney Electr. & Magn. v. 116 Both a magnet and a current-carrying coil are said to produce a magnetic induction B, which exerts forces on other coils or magnets. 1957 B. I. Bleany & B. Bleaney Electr. & Magn. v. 128 With a magnetic pole, H is the force vector, while the introduction of a uniform magnetic medium throughout the whole of space leaves the magnetic induction B due to a pole unchanged. In the case of a current, B is the force vector and introduction of a magnetic medium leaves H unchanged. If the magnetizable matter does not fill the whole of space, then it is the surface integral of B, the total normal induction, which remains unchanged in magnetostatics. 1962 D. R. Corson & P. Lorrain Introd. Electromagn. Fields v. 179 If the current I is distributed in space with a current density J amperes/meter², then I becomes J da and must be put under the integral sign... Thus, in the general case, the magnetic induction B at a point in space is given by B = (μ₀/4π)∫_τ(J × r₁)/r²dτ, where the integration is carried out over any volume τ which includes all the currents. extracted from inductionn. < as lemmas
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> as lemmas