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What is a safety device that break a circuit when too much current is flowing called?
Wiki User
∙ 6y ago
Circuit breakers are designed to automatically and manually interrupt circuits. When circuit breakers automatically actuate they are said to have 'tripped.' Also user operators can shut down circuits through individual breakers or the entire system through a master breaker.
Wiki User
∙ 9y ago
Wiki User
∙ 14y agoCircuit breaker or fuse will prevent excess flow of electricity which could damage wiring, cause fires, etc. A ground-fault breaker will detect leakage of current out of it's intended circuit (like thru your body to ground) and shut off the power
Wiki User
∙ 8y agoA fuse is one device that is used to break an excessive flow of current. Another device is an electrical breaker. The breaker is a better choice over the two because it can be reset whereas a fuse is destroyed and has to be replaced after every fault.
Wiki User
∙ 16y agocircuit breaker or fuse or ground fault interrupter
Wiki User
∙ 13y agoa fuse is used for this purpose which utilizes the heating effect of current or a circuit breaker which makes use of magnetic effect.
Wiki User
∙ 12y agoIt's either a resistor, which slows and limits the flow of electricity, or the switch, which can break the flow by being moved to break the path of the current. It is a fuse.
Wiki User
∙ 8y agoI assume you mean "... when too much ..."
A fuse.
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What device used to stop and start the flow of electricity in a circuit is a?
A switch is a device that stops and starts current flow in a circuit.
When a circuit is opened what happens?
Nothing. An open circuit means no current is flowing. When the circuit is closed, current flows, the filament of the bulb is heated by the current and glows, giving off light. But when the circuit is open, nothing happens.
What is a device used to open and close an electric circuit?
The device is called a switch.
What safety devices provides a weak link in a circuit that will melt if it received too much current thus breaking the circuit and stopping the flow of electricity?
The device that has a melting link in it is called a fuse.
Is a circuit breaker a resistor?
No, a circuit breaker is a safety device that is used in a circuit to limit the amount of current in an overload or short circuit condition. The number on a breaker is the top end current that the breaker will handle before opening the circuit.
What is a device that keeps too much current from flowing through wires?
closed circuit
Is a circuit breaker a safety device that monitors the current flowing thouugh a cicuit?
Yes. It is designed to "trip" (Open the circuit) when an over-current situation is detected.
What happens when you open a switch in a circuit?
The current to the load stops flowing and the load device stops operating.
A device that protects a circuit from current overload is called what?
Fuse, Circuit breaker
How does a fuse help safety?
A fuse is a safety device that helps prevent excess current flowing in an electric circuit.
On what factors the current flowing through a device depends?
Current flowing through a device depends on resistance offered by that device.
How to measure current?
Current in a circuit can be measured by using a device called ammeter that is always connected in series in the circuit in which current is to be measured.
What a device that protects an electric circuit from too much current?
Circuit Breakers and Fuses limit the amount of current flowing through the circuit.
Electrical device activated by a current that opens or closes another circuit?
An electrical device activated by a current that opens or closes another circuit is called a relay. A contactor also falls into this category.
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.
How do you prevent the excess amount of current flows through the source?
An inrush current preventing circuit includes a rectification circuit, a temperature-sensitive component, a controller, a switching circuit, and a tank circuit. The controller outputs a control signal to turn on the switching circuit in response to the tank circuit being at a substantially full voltage, and the rectification circuit and the switching circuit forming a current loop for providing power from the rectification circuit to an electronic device. The controller outputs no control signal to turn off the switching circuit in response to the tank circuit being undercharged, and the rectification circuit and temperature-sensitive component forming a current loop for providing power from the rectification circuit to the electronic device for protecting the electronic device. the rectification circuit and the switching circuit forming a current loop to provide power from the rectification circuit to the electronic device;wherein the controller does not output a control signal to turn off the switching circuit in response to the tank circuit being undercharged, the rectification circuit and temperature-sensitive component forming a current loop to provide power from the rectification circuit to the electronic device such that an excess amount of current is prevented from flowing to the electronic device
What is the term of null balance?
Null measurements balance voltages so that there is no current flowing through the measuring device and, therefore, no alteration of the circuit being measured.
