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commutator

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Commutator (electric) - Wikipedia
A commutator is a rotary electrical switch in certain types of electric motors and electrical generators that periodically reverses the current direction between the rotor and the external circuit . It consists of a cylinder composed of multiple metal contact segments on the rotating armature of the machine. en.wikipedia.org
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Commutator - Wikipedia
In mathematics, the commutator gives an indication of the extent to which a certain binary operation fails to be commutative. en.wikipedia.org
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Commutator -- from Wolfram MathWorld
The commutator of two group elements A and B is ABA^(-1)B^(-1) , and two elements A and B are said to commute when their commutator is the identity element. mathworld.wolfram.com
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commutator
commutator (ˈkɒmjuːteɪtə(r)) [Agent-n. from L. commūtāre.] 1. a. He who or that which commutes or exchanges. spec. A contrivance in an electric machine or telegraph instrument for altering the direction or course of the electric current.1839 Grove Contrib. Sc. in Corr. Phys. Forces 253 A commutator ... Oxford English Dictionary
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Commutators | Plexon
A commutator is an electrical swivel that allows an animal to move freely by keeping the cables connected to the research equipment untangled. plexon.com
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Commutator - an overview | ScienceDirect Topics
The commutator on the DC generator converts the AC into pulsating DC. The commutator assures that the current from the generator always flows in one direction. www.sciencedirect.com
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Commutator (electric)
only two commutator segments. As the brush and commutator wear down, the spring steadily pushes the brush downwards towards the commutator. wikipedia.org
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4.5 The Commutator - FAMU-FSU College of Engineering
4.5 The Commutator ... is a measure of the uncertainty of a property of a quantum system. The larger the standard deviation, the farther typical measurements ... eng-web1.eng.famu.fsu.edu
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COMMUTATOR Definition & Meaning - Merriam-Webster
The meaning of COMMUTATOR is a series of bars or segments connected to the armature coils of a generator or motor so that rotation of the armature will in ... www.merriam-webster.com
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What is commutator? - Quora
A commutator is a rotary electrical switch in certain types of electric motors and electrical generators that periodically reverses the current direction ... www.quora.com
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What do commutators mean in mathematics and how can they be ...
The main point behind commutators is that x and y commutate if and only if [x,y]=1 (here 1 is the group identity). You should be able to prove ... www.reddit.com
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Commutator - an overview | ScienceDirect Topics
The commutator is defined for elements v and w in an associative algebra A as [v, w] = v·w - w·v, representing the Lie bracket that introduces a Lie algebra ... www.sciencedirect.com
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commutator
commutator/ˈkɔmju:teɪtə(r); `kɑmjʊˌtetɚ/ ndevice for altering the direction of an electric current 整流器; 换向器. 牛津英汉双解词典
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Commutator subspace
Commutator subspaces, though, received sparse attention until the 1970s. The commutator subspace of J is a linear subspace of J denoted by Com(J) or [B(H),J]. wikipedia.org
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Portable Commutator
The Portable Commutator was a telecommunications device that was used by the military during World War I. wikipedia.org
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