1. 
   Open Circuit
   An electrical circuit that has been broken or interrupted and so cannot pass a current or signal.
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
2. 
   open circuit
   [n] - an incomplete electrical circuit in which no current flows
   Found op http://www.webdictionary.co.uk/definition.php?query=open%20circuit
   
   
3. 
   Open Circuit
   1) Having a break in a conductor or, for another reason, not having a complete path for electrons to flow.
   2) Said of an amplifier, having nothing feeding the input.
   Found op http://www.testing1212.co.uk/a.htm
   
   
4. 
   Open Circuit
   This is one of two types of circuit fault (the other being a short circuit). In an open circuit fault, there is a break in the circuit. This break will prevent any current from flowing. Open circuit faults register on an ohmmeter with an extremely high (ideally infinite) resistance
   Found op http://www.users.zetnet.co.uk/computing/MainPage/SecDepts/Physics/Resources
   
   
5. 
   Open Circuit
   A break in an electrical circuit that prevents current from flowing.
   Found op http://www.traditionalmusic.co.uk/music%20tech%20glossary/Music%20Tech%20Gl
   
   
6. 
   Open Circuit
   The lack of electrical contact in any part of the measuring circuit. An open circuit is usually characterized by rapid large jumps in displayed potential, followed by an off-scale reading.
   Found op http://www.flowmeterdirectory.com/flowmeter_technical_glossary/flowmeter_te
   
   
7. 
   open circuit
   noun an incomplete electrical circuit in which no current flows
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=open%20circuit
   
   
8. 
   open circuit
   for a given terminal pair, electric circuit without a continuous path between the two terminals of the pair
   Found op http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=131-12-73
   
   
9. 
   Open Circuit
   A break in an electrical circuit that prevents normal current flow.
   Found op http://www.electricmotorwarehouse.com/Glossary.htm
   
   
10. 
    Open Circuit
    In electronics, an open ciruit is a conducting circuit which is incomplete, or is interrupted at some point.
    Found op http://www.probertencyclopaedia.com/browse/GO.HTM
    
    
11. 
    open-circuit
    qualifies an input, output or transfer immittance when the other ports have zero terminating admittances, or a forward or reverse transfer ratio when the port corresponding to the numerator has zero terminating admittance NOTE - Examples in IEC 60027-2 are the open-circuit output impedance, the open...
    Found op http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=131-14-23
    
    
12. 
    opening time of an output-break circuit
    for a relay which is in the release condition, the time interval between the instant a specified value of the input energizing quantity is applied under specified conditions and the instant when the output-break circuit first opens
    Found op http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=446-17-02
    
    
13. 
    opening time of an output-make circuit
    for a relay which is in an operate condition, the time interval between the instant the input energizing quantity is removed under specified conditions and the instant when the output-make circuit first opens
    Found op http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=446-17-06
    
    

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