lenz's law

World English Dictionary
Lenz's law (ˈlɛntsɪz)
 
n
physics the principle that the direction of the current induced in a circuit by a changing magnetic field is such that the magnetic field produced by this current will oppose the original field
 
[C19: named after H. F. E. Lenz (1804--65), German physicist]

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American Heritage
Science Dictionary
Lenz's law   (lěnt'sĭz)  Pronunciation Key 
A principle stating that an electric current, induced by a source such as a changing magnetic field, always creates a counterforce opposing the force inducing it. This law explains such phenomena as diamagnetism and the electrical properties of inductors. The law is named after its discoverer, German physicist Heinrich Lenz (1804-1865).
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Britannica
Encyclopedia

lenz's law

in electromagnetism, statement that an induced electric current flows in a direction such that the current opposes the change that induced it. This law was deduced in 1834 by the Russian physicist Heinrich Friedrich Emil Lenz (1804-65).

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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