| 单词 | specific conductance |
| 释义 | > as lemmasspecific conductance specific conductance n. the conductivity of unit length of a material of unit cross-sectional area; the reciprocal of resistivity (see resistivity n.). ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > transmission of electricity, conduction > [noun] > conductive power conductivity1837 conductibility1862 conductility1883 conductance1885 specific conductance1885 specific conductivity1898 1885 O. Heaviside in Electrician 4 Sept. 311/1 ‘Specific resistance’ may well be called ‘resistivity’, and specific conductance ‘conductivity’, referring to the unit volume. Resistivity is the reciprocal of conductivity, and resistance of conductance. 1886 O. Heaviside in Electrician 29 Jan. 228/1 ‘Resistivity’ for specific resistance, and ‘conductance’ for what is sometimes called the conductibility of a wire, i.e., not its conductivity (specific conductance), but the reciprocal of its resistance. 1924 J. R. Partington in H. S. Taylor Treat. Physical Chem. I. xi. 517 In such cells conductivity water with a specific conductance of 0·21 × 10—6 ohm—1 can be kept 12 hours without change. 1958 E. U. Condon & H. Odishaw Handbk. Physics iv. ix. 141/1 In terms of Ohm's law, the defining equation..for specific conductance reduces to κ = I/E..where I is the current and E the potential applied to a centimeter-cube sample of the conductor. < as lemmas |
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