| 释义 |
Lenz's law Electr.|ˈlɛntsɪz, ˈlɛnzɪz|
[Named after H. F. E. Lenz (1804–65), German physicist, who first enunciated it (in Ann. d. Physik u. Chem. (1834) XXXI. 483).]
The law that the direction of an induced current is always such as to oppose the change in the circuit or the magnetic field that produces it.
1866E. Atkinson tr. Ganot's Elem. Treat. Physics (ed. 2) x. vi. 696 On the induction produced between a closed circuit and a current in activity when their relative distance varies, Lenz has based the following law, which is known as Lenz's law. 1931L. B. Loeb Fund. Electr. & Magn. i. 35 Unless Lenz's law holds we could by induction effects get energy out of nothing. 1962Corson & Lorrain Introd. Electromagn. Fields vi. 222 Lenz's law is a particular case of Le Chatelier's principle. 1973Physics Bull. Dec. 715/2 Any change in the external field induces an appropriate supercurrent which (by Lenz's law) is just sufficient to counter the effect of the field variation. |