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open circuit

noun, Electricity.
1.
a discontinuous circuit through which no current can flow.
Compare closed circuit.
Origin of open circuit
1820-1830
1820-30
Related forms
open-circuit, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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Examples from the Web for open-circuit
Historical Examples
  • The drop or relay controls a local circuit composed of an open-circuit battery and an ordinary vibrating bell.

  • Some forms of wet battery work in the same way as the dry battery, and are used like-wise for open-circuit work.

    The Story of Great Inventions Elmer Ellsworth Burns
  • The chemicals that are used are usually different from those used in the open-circuit batteries and are much stronger.

    ABC of Electricity William Henry Meadowcroft
  • The open-circuit battery is made in many different ways, so we only describe two of the principal ones.

    ABC of Electricity William Henry Meadowcroft
  • It can be used, therefore, only in "open-circuit" work—such as door-bell circuits, and some forms of fire and burglar alarm.

    The Story of Great Inventions Elmer Ellsworth Burns
  • A dry cell, Leclanché, or other open-circuit cell would not be at all suitable for a telegraph line, as it would soon polarize.

    How Two Boys Made Their Own Electrical Apparatus Thomas M. (Thomas Matthew) St. John
  • Then we reason that there is an open-circuit between F and G.

  • A dry battery will do, but if you use the sounder much, an open-circuit battery will soon use itself up.

    How Two Boys Made Their Own Electrical Apparatus Thomas M. (Thomas Matthew) St. John
British Dictionary definitions for open-circuit

open circuit

noun
1.
an incomplete electrical circuit in which no current flows Compare closed circuit
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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open-circuit in Science
open circuit
  (ō'pən)   
An electric circuit in which the normal path of current has been interrupted, either by the disconnection of one part of its conducting pathway from another, or by the intervention of an electric component, such as a transistor. Compare closed circuit.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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