α. 1800s Ampèrian, 1800s– Amperian.
β. 1900s– Amperean.
Amperianadj.
/amˈpɛːrɪən/, U.S. /æmˈpɛriən/ Of or relating to André-Marie Ampère or his theory of electromagnetic currents; spec. (a) designating the circulating currents produced by the motion of electrons and giving rise to the phenomena of magnetism; (b) relating to the proportional relationship between the integral of a magnetic field and an electric current flowing in a closed loop, expressed by Ampère's law.
ΘΚΠ
the world > matter > physics > electromagnetic radiation > electricity > electrically induced magnetism > electromagnetic induction > [adjective]
inductive1832
Amperian1837
inducing1837
inducting1839
inductric1855
faradaic1875
faradic1878
magneto-inductive1879
1837 W. Whewell Hist. Inductive Sci. III. xiii. viii. 95 According to the Amperian theory, electricity and magnetism are identical.
1866 E. Atkinson tr. A. Ganot Elem. Treat. Physics (ed. 2) x. iv. 674 At the north pole of a magnet the direction of the Ampèrian currents is opposite that of the hands of a watch, and at the south pole the direction is the same.
1985 A. L. Stanford & J. M. Tanner Physics for Students Sci. & Engin. xvii. 507 The gross nature of magnetism may..be apprehended in its essentials by assuming that tiny current loops, called amperean currents, are inherently associated with the subatomic structure of matter.
2008 J. Newman Physics of Life Sci. xvii. 445 We choose an Amperian loop in the form of a rectangle..and evaluate the circulation around the loop by adding the contribution from each side.
This entry has been updated (OED Third Edition, September 2019; most recently modified version published online December 2021).
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adj.1837