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The electric path which starts from the positive terminal of a cell or battery ends at its negative terminal, without any break, is called closed electric circuit or complete electric circuit. The electric path,which starts from the positive terminal of a cell or battery, is broken at some point, is called open electric circuit or incomplete electric circuit.

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12y ago
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14y ago

In electrical theory, a closed circuit is one that allows current to flow, an open circuit is one that does not.

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Q: What are normally open and close circuits?
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Related questions

What is used to open and close circuits?

a switch.


What is the difference between normally close and normally open?

normally close relay is closed initially and when a signal arrive to it it will open and dont let the current pass i9n opposit to normally open


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Many circuits have a which is a device to open and close the circuit.?

A basic manual operating switch is able to open or close a circuit. There are electronic components that will also control the working of a circuit.


When very heavy electrical currents must be turned on and off you would normally use a?

You would normally use a contactor or a relay to control very heavy electrical currents. These devices can handle high current loads and are designed to safely open and close circuits for the desired operation.


Is the pressure switch high Normally open or normally close?

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A cooling thermostat only will be normally open, closing on the rise of temperature. A Heat only thermostat will be a normally open, close on the fall of temperature.


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What does nc and no mean in electrical terms?

nc: Normally Closed (contact is closed when power is not applied) no: Normally Open (contact is open when power is not applied) Applies to a relay ex...: when power is applied to a relay the no(Normally Open contact will close and allow current to flow between two terminals on relay).