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Q: What moves through a circuit and is measured by current?
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If voltage changes in a ac circuit what happens to current?

Voltage attempts to make a current flow, and current will flow if the circuit is complete. It is possible to have voltage without current, but current cannot flow without voltage. The answer is "yes",voltage remains the same as current moves through the circuit.As the voltage remains constant, current increases in the circuit.


When current flows through a wire what are they called?

Current flow is when charge moves from one point to another. It is measured in coulombs per second, which is more commonly known as amperes.


What is a device that moves an alternating current from one circuit to one or more other circuits called?

Transferrer


Does voltage flow through a circuit or is it established across a circuit?

The 'charges' (electrons, in the case of a metal conductor) are ALREADY distributed within the conductor. They are in a state of constant, haphazard, movement at just short of the speed of light. When a potential difference is applied across the conductor, there is a tendency for these electrons to move from the negative potential towards the positive potential. This tendency is VERY slow; for example, an individual electron is unlikely to pass through the filament of a flashlight during the lifetime of its battery!


Why does the surge protectors circuit breaker trip if a surge or overload is detected?

A circuit breaker shuts off the power to an electrical circuit when it detects too much current flow. As electricity moves through wiring, an electromagnetic field develops around the wire. Electromagnetic breakers capitalize on this field production by using electromagnets. The current that moves through the breaker charges the electromagnet and as the current increases the magnetic pull also increases. If the current exceeds the limit the breaker is designed to handle, the magnetic pull becomes strong enough to pull the contact plate away from the stationary plate. This breaks the circuit and is referred to as "tripping the breaker. A surge protector on the other hand prevents a voltager higher than the normal voltage from damaging electical devices. It does not shut off the power as a circuit breaker or fuse does.

Related questions

What kind of electricity moves through a circuit?

Current Electricity


What force keep current flowing?

Voltage is the pressure that moves the electrons (current) through a circuit.


Does the voltage increase when current moves through the circuit?

If a buck boost converter is a part of the circuit, then it is possible.


What exactly is current?

Current is the flow of electric charge in a circuit. It is measured in amperes (A) and represents the rate at which electric charge moves through a conductor, such as a wire. Current is essential for transferring energy and powering electrical devices.


In an electric current electricity flow how?

Electricity can flow in an electric circuit by a battery. The battery creates electrons, which flow through the wire, and then go into a light bulb. (That is how a light bulb in a circuit lights up.) A series circuit is a circuit with one wire that electrons can flow through. Also, there can be more than one light bulb connecting to the same wire. A parallel circuit is a circuit with light bulbs that have their own wire.ClarificationThe above answer, unfortunately, perpetuates the myth that current leaves a battery, and finds its way around a circuit. This is not the case at all. It is the load that 'draws' the current from the battery and it is the load that determines the size of that current.


If voltage changes in a ac circuit what happens to current?

Voltage attempts to make a current flow, and current will flow if the circuit is complete. It is possible to have voltage without current, but current cannot flow without voltage. The answer is "yes",voltage remains the same as current moves through the circuit.As the voltage remains constant, current increases in the circuit.


IF you want to stop a current flow through a device device three in the circuit which one of the following single switches should you open?

If you want to stop the current flow through Device 3 in the circuit, the switch that should be open is Switch S5. When an electric current flows through a long conductor, each free electron moves through a relatively short distance.


What cause the pointer to move in a galvanometer?

Basically, the pointer moves due to measuring the direct current (flow of electric charge) through an electric circuit.


Do protons travel through an electric circuit at or near the speed of light?

Electricity, this may be electrons in a direct current. In an alternating current the electrons stay where they are and it is only the energy that moves between electrons.


What particle moves when electricity flows through a circuit?

Electrons


What is the movement of energy that moves from place to place in an electrical circuit called?

The electric current


When current flows through a wire what are they called?

Current flow is when charge moves from one point to another. It is measured in coulombs per second, which is more commonly known as amperes.