| 释义 |
ˈohmic, a.
[c gray][f. ohm2 + -ic.][/c] That obeys Ohm's law, or exhibits behaviour consistent with it.
1889Electr. Rev. 11 Oct. 411 At present Dr. Fleming and a few others talk of ‘ohmic’ resistance, to distinguish resistance from the relation between the back electromotive force and the current. 1904Electrician Nov. 150/1 The energy dissipation due to ohmic resistance in the metal. 1926R. W. Lawson tr. Hevesy & Paneth's Man. Radioactivity i. 14 This proportionality between current and potential..only maintains for the initial part of the curve (the region of Ohmic current, cf. Fig. 3). 1949Bell Syst. Techn. Jrnl. XXVIII. 471 (heading) Semi-conductor with two p-n junctions and ohmic metal contacts. 1967Electronics 6 Mar. 136/2 Ohmic heating in the device induces diffusions that form p-n junctions.
Hence ˈohmically adv., by, or as a result of, ohmic resistance.
1919Radio Rev. Dec. 144 A set of triodes arranged in an ohmically-coupled cascade. 1968C. G. Kuper Introd. Theory Superconductivity i. 10 Changes in the field produce eddy currents, but they will decay Ohmically. |