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it prevents electricity to flow. i hope that is right

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Jairo Schinner

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Q: What happened what happens when a switch in a circuit is open?
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Related questions

What happens to an electric current at a light switch?

When an electrical switch is in the off position, the circuit is interrupted. When the switch is on, the circuit is open and complete.


What happens if you move a switch and the circuit wires are not all connected?

When a switch is open (wires not connected) it is considered off. When a switch is closed it is considered on. If you move a switch and the wires are not connected the the circuit is open and current cannot run throughout the circuit to power the device.


What do you call a circuit when the switch is open?

An open circuit....


What happens if the switch is open in a parallel circuit?

It shouldn't. Your house wiring is a series- parallel circuit.


Used to open and close a circuit?

A light switch


What can be put into a circuit to open the circuit?

A switch.


When the switch is closed it means that?

There is a complete path for the electricity to flow. The opposite of an open circuit. If a light switch is on and the light comes on, the circuit is closed. If the switch is turned off, the light goes off because the circuit is open.


What happens when you open a switch in a circuit?

The current to the load stops flowing and the load device stops operating.


When a switch is on is a circuit open or closed?

If the switch is what is keeping the load from turning on, then yes, there is a voltage across the open switch.


When you turn on a light switch you an open circuit. What goes in the blank?

When you turn on a light switch you do not have an open circuit.


What happens when you open a switch in a series crcuit?

A closed series circuit is one where the current flows through all devices in the circuit. Opening a switch prevents current from flowing in the circuit and it becomes simply an "open circuit". Any device that operates with current (light, LED, motor, etc) will no longer function.


What do a switch do for the circuit?

It open and close it