| 单词 | negative resistance |
| 释义 | > as lemmasnegative resistance negative resistance n. the phenomenon or property whereby an increase in the potential difference across the terminals of certain electrical devices (e.g. an arc lamp) causes a drop in the current flowing through it. ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > resistance > [noun] resistance1746 R1842 water resistance1859 resistivity1885 skin effect1890 high-frequency resistance1892 leak1896 negative resistance1896 photoresistance1925 piezoresistance1954 piezoresistivity1958 1896 London, Edinb., & Dublin Philos. Mag. 5th Ser. 42 410 All these experiments..lead to the conclusion that the arc has a negative resistance. 1932 W. L. Everitt Communication Engin. xviii. 479 A negative resistance can be used in a circuit to counteract the effect of positive resistance and so cause a combination of inductance and capacitance to oscillate. 1990 New Scientist 28 July 68/1 Negative resistance can be achieved in electronic gyrator circuits configured so that the combination of a capacitance with a number of resistors behaves as if it were an inductor at a specific audio frequency. < as lemmas |
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