- a discontinuous circuit through which no current can flow.
Compare closed circuit.
Origin of open circuit
First recorded in 1820–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for open circuit
Then we reason that there is an open-circuit between F and G.Letters of a Radio-Engineer to His Son
The drop or relay controls a local circuit composed of an open-circuit battery and an ordinary vibrating bell.The Boy Mechanic, Book 2
It can be used, therefore, only in "open-circuit" work—such as door-bell circuits, and some forms of fire and burglar alarm.
Some forms of wet battery work in the same way as the dry battery, and are used like-wise for open-circuit work.
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
- an incomplete electrical circuit in which no current flowsCompare 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
- 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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.