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You need basically two things: a complete, closed-loop conductive path and an electro-motive force, that is, a voltage. Check out this picture for a simple circuit containing a battery, two wires, and a light bulb: http://www.bbc.co.uk/schools/ks3bitesize/science/images/sci_dia_52.gif. The wires and bulb complete the conductive path from, and returning to, the battery.
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∙ 16y ago
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∙ 11y agoFree electrons. These can be in the form of valence electrons in a crystalline structure of a metallic solid. A good example is Copper, which has a high conductivity due to it's free electrons.
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∙ 7y agoInitial velocity (in air/vacuum) or/and electric potential.
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∙ 14y agoAn Electro-Motive Force EMF such as a battery.
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∙ 12y agoThe most common way to move electrons from the air is by magnetism, which is produced By a generator. This force produced by the generator is called Electromotive Force (EMF)
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∙ 16y agoAn electric field.
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∙ 14y agoThe need for EMF
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∙ 14y agoVoltage and conductivity.
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Why does an electric circuit that operates correctly need to be closed circuit?
In order to have the electricity or the flow or electrons going around the circuit, the circuit must be closed. If it is not closed then electrons cannot flow.
Is true if there is voltage in circuit there must be electrons flowing through the circuit.?
No. For electrons to flow, you need a current.
Why electric current current exist if an electric circuit is broken?
well, current is the movement of free electrons so if you break a point in the wire you effectively stop the electrons from flowing as the electrons need to be touching each other in order to pass on energy or charge. The reason why if there is a gap in the circuit the electrons dont just jump it is because of resistance of air as the electrons in air are not free to flow they are not conduction electrons unlike in a metal such as copper wire.
Why do you need to wires to carry current?
Conducting materials readily give and receive electrons from one atom to another. Electric current is actually the flow of electrons, so if it's difficult for the electrons to move, there will little or no current flow.
How many electrons does a nitrogen atom need to gain in order to attrain a noble-gas?
Nitrogen has to gain three electrons
Why does an electric circuit that operates correctly need to be closed circuit?
In order to have the electricity or the flow or electrons going around the circuit, the circuit must be closed. If it is not closed then electrons cannot flow.
Is true if there is voltage in circuit there must be electrons flowing through the circuit.?
No. For electrons to flow, you need a current.
Why do electric circuits need to use conductors?
Without conductors, electrons do not flow where you want them to flow. An electrical circuit is a flow of electrons.
Why do you need a switch in a circuit?
To Complete the Circuit To allow the Electrons to Flow from the conducting material and to avoid the shocks plastics are used
In order for the electrons to move they need a closed loop called?
electrons need a closed loop called what in order to move?
In order for the electrons to move they need a closed losed loop called?
A "circuit".
Why are circuits connected?
Electrons need to be able to flow from each part of the circuit to the next, and they don’t flow easily through air. This is why wires are used. They have a smaller resistance than air, and so the electrons can flow smoothly.
Why electric current current exist if an electric circuit is broken?
well, current is the movement of free electrons so if you break a point in the wire you effectively stop the electrons from flowing as the electrons need to be touching each other in order to pass on energy or charge. The reason why if there is a gap in the circuit the electrons dont just jump it is because of resistance of air as the electrons in air are not free to flow they are not conduction electrons unlike in a metal such as copper wire.
Why is electricity sometimes described as a flow of electrons?
Flowing electrons makes electricity (they flow from negative to positive. ). You need a circuit or a path for the electrons to move through, a power source like a battery or a generator, and something to use the electricity, like a light bulb...
Why des electricity need to follow a path?
Electricity is the flow of electrons.Hence it requires a path containing free electrons in order to flow.
What does a current flow of electrons need?
Your question is not clear. A current is generated when a group of electrons flow through a conductor, and this happens when there is a potential difference between the 2 ends of the conductor. If you want to know how can we start the flow of electrons it is by creating a potential difference in between the 2 ends of the conductor.
Does current need free electrons for it to flow?
yes it need ion to flow
