open circuit


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Open circuit

A condition in an electric circuit in which there is no path for current between two points; examples are a broken wire and a switch in the open, or off, position. Open-circuit voltage is the potential difference between two points in a circuit when a branch (current path) between the points is open-circuited. Open-circuit voltage is measured by a voltmeter which has a very high resistance (theoretically infinite).

McGraw-Hill Concise Encyclopedia of Physics. © 2002 by The McGraw-Hill Companies, Inc.

open circuit

[′ō·pən ′sər·kət]
(electricity)
An electric circuit that has been broken, so that there is no complete path for current flow.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

open circuit

A discontinuous electric circuit through which no current can flow.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
To validate these substituted impedance choices, two representative faults (one a short circuit between N6 and N8 and one an open circuit at the drain of M1) are simulated in the TT technology corner, for various resistance choices, as shown in Figures 8 and 9.
The proposed theory provides a metamaterial inspired interpretation for the operation of conventional devices, e.g., meandered coupled lines and CPW open circuited shunt stubs.
Generator saturation values of S(1.0), S(1.2) characteristics are determined by the open circuit (no load) characteristic (Fig.
Measuring the electrode potential in open circuit with acid HCl and [H.sub.2]S[O.sub.4] solutions, reveal that chemical composition and metallurgic processing can influence the formation and/or stability of protective film from metallic material surface.
Standard features include reverse polarity protection, input/output short and open circuit protection, RF power telemetry, integrated DC-DC converter with over voltage/over current monitoring and protection.
The Series 45, 38cc and 45cc open circuit pump is used with other fluid power products to transfer and control hydraulic power.The pump provides a variable flow rate with two choices of maximum displacement in one package.The pump is a compact, high-power density unit using the parallel axial piston/slipper concept with a rotatable swash plate.The pump powers work functions in agricultural tractors, sprayers and combines, plus construction equipment such as small loaders, mini-excavators and large skid steer loaders.
* To produce over 32.8% of minus 12.5 mm ore in open circuit;
Once the emergency circuits have been established you will need to be careful that future loads added to these circuits fit the criteria of being "critical." Very often, new loads are added to any electric panel that might have an open circuit breaker, regardless of their importance.
The involved vehicles have air bag systems where an open circuit could be created over time.
Carbon nanotubes are flexible and are therefore resistant to cracking and undesired open circuit conditions due to bends.
The open circuit piston motor offers reverse circuit functionality without external valves offering a hydraulic system solution for mobile equipment applications.