Ohm's lawn.

Brit.

/ˈəʊmz ˌlɔː/, U.S.

/ˈoʊmz ˈlɔ/,

/ˈoʊmz ˈlɑ/

Origin: From a proper name, combined with an English element. Etymons: proper name Ohm , law n.¹

Etymology: < the genitive of the name of Georg Simon Ohm (see ohm n.²) + law n.¹

1. The law that the strength of a constant electric current in a circuit is proportional to the electromotive force divided by the resistance of the circuit, and that the potential difference between any two points of it is proportional to the resistance between them. Formerly (also): any of various related principles.Propounded by Ohm in Die Galvanische Kette, Mathematisch Bearbeitet (1827).

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the world > matter > physics > electromagnetic radiation > electricity > resistance > [noun] > Ohm's law

Ohm's law1850

1842 Philos. Trans. (Royal Soc.) 132 137 The beautiful law of Ohm, and the simple expression which he has given of the electromotive force and resistances of a voltaic circuit, enable me to review with advantage, and to correct, many of the conclusions which I had derived from former experiments.]

1850 London, Edinb., & Dublin Philos. Mag. 37 463 (heading) On a deduction of Ohm's laws, in connexion with the theory of electro-statics.

1858 Jrnl. Soc. Arts 6 352/1 Ohm's law..is to the effect that the amount of electricity passing in a given time depends upon the sectional area of the conductor, upon the electrical power of the material, and inversely upon the length of the conductor.

1921 W. S. Ibbetson Motor & Dynamo Control iv. 131 Generally speaking, A.C. circuits do not obey Ohm's law.

1973 J. W. Gardner New Frontiers in Electr. vii. 138 Superconductors constitute a very dramatic violation of Ohm's law.

1996 Railroading Oct. 44/3 When the filament runs dimmer (cooler) its resistance decreases (remember Ohm's Law).

2. Acoustics. The principle that a complex musical sound is heard as the sum of a number of distinct pure tones into which the sound can be resolved by Fourier analysis.Propounded by Ohm in Ann. d. Physik (1843) 59 513, and called Ohm's Regel by Helmholtz in Die Lehre von den Tonempfindungen (1863) ii. 54.

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the world > matter > physics > science of sound > vibration > [noun] > Ohm's law

Ohm's law1875

1875 A. J. Ellis tr. H. L. F. von Helmholtz On Sensations of Tone ii. 51 Every motion of the air..which corresponds to a composite mass of musical tones, is, according to Ohm's law, capable of being analysed into a sum of simple pendular vibrations, and to each such single simple vibration corresponds a simple tone, sensible to the ear.

1924 G. Wilkinson & A. A. Gray Mechanism of Cochlea i. 14 Ohm's Law is a generalisation from the results of experiment.

1974 S. E. Gerber Introd. Hearing Sci. vi. 134 When tones of relatively low intensity which differ considerably in frequency are presented together, they are perceived as two distinct tones, in accordance with Ohm's law.

This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022).

单词	ohms law
释义	Ohm's lawn. Brit. /ˈəʊmz ˌlɔː/, U.S. /ˈoʊmz ˈlɔ/, /ˈoʊmz ˈlɑ/ Origin: From a proper name, combined with an English element. Etymons: proper name Ohm , law n.¹ Etymology: < the genitive of the name of Georg Simon Ohm (see ohm n.²) + law n.¹ 1. The law that the strength of a constant electric current in a circuit is proportional to the electromotive force divided by the resistance of the circuit, and that the potential difference between any two points of it is proportional to the resistance between them. Formerly (also): any of various related principles.Propounded by Ohm in Die Galvanische Kette, Mathematisch Bearbeitet (1827). ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > resistance > [noun] > Ohm's law Ohm's law1850 1842 Philos. Trans. (Royal Soc.) 132 137 The beautiful law of Ohm, and the simple expression which he has given of the electromotive force and resistances of a voltaic circuit, enable me to review with advantage, and to correct, many of the conclusions which I had derived from former experiments.] 1850 London, Edinb., & Dublin Philos. Mag. 37 463 (heading) On a deduction of Ohm's laws, in connexion with the theory of electro-statics. 1858 Jrnl. Soc. Arts 6 352/1 Ohm's law..is to the effect that the amount of electricity passing in a given time depends upon the sectional area of the conductor, upon the electrical power of the material, and inversely upon the length of the conductor. 1921 W. S. Ibbetson Motor & Dynamo Control iv. 131 Generally speaking, A.C. circuits do not obey Ohm's law. 1973 J. W. Gardner New Frontiers in Electr. vii. 138 Superconductors constitute a very dramatic violation of Ohm's law. 1996 Railroading Oct. 44/3 When the filament runs dimmer (cooler) its resistance decreases (remember Ohm's Law). 2. Acoustics. The principle that a complex musical sound is heard as the sum of a number of distinct pure tones into which the sound can be resolved by Fourier analysis.Propounded by Ohm in Ann. d. Physik (1843) 59 513, and called Ohm's Regel by Helmholtz in Die Lehre von den Tonempfindungen (1863) ii. 54. ΘΚΠ the world > matter > physics > science of sound > vibration > [noun] > Ohm's law Ohm's law1875 1875 A. J. Ellis tr. H. L. F. von Helmholtz On Sensations of Tone ii. 51 Every motion of the air..which corresponds to a composite mass of musical tones, is, according to Ohm's law, capable of being analysed into a sum of simple pendular vibrations, and to each such single simple vibration corresponds a simple tone, sensible to the ear. 1924 G. Wilkinson & A. A. Gray Mechanism of Cochlea i. 14 Ohm's Law is a generalisation from the results of experiment. 1974 S. E. Gerber Introd. Hearing Sci. vi. 134 When tones of relatively low intensity which differ considerably in frequency are presented together, they are perceived as two distinct tones, in accordance with Ohm's law. This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022). < n.1850
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