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The flow of charge in a conducting wire is caused by the presence of an electric field. When a potential difference (voltage) is applied across the wire, it creates an electric field that exerts a force on the free electrons in the wire, causing them to move and create an electric current.
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What constitutes an electric current in a wire?
An electric current in a wire is the flow of electric charge, typically carried by electrons, through the wire. This flow of charge is driven by a voltage difference, or potential difference, between two points in the wire.
How is electricity transmitted through a conducting wire?
Electricity is transmitted through a conducting wire by the movement of electrons. When a voltage is applied to the wire, it creates an electric field that pushes the electrons along the wire, allowing the flow of electricity from one point to another.
Why does increasing voltage of a wire have the same effect on the current that decreasing the resistance has?
Increasing the voltage in a wire causes more electric potential energy per charge, which results in higher energy per charge moving through the wire, leading to an increase in current. Similarly, decreasing the resistance in a circuit allows for more charge to flow with the same applied voltage, resulting in an increased current flow.
How the charge of a wire changes when the electricity current flows in the wire?
When electricity current flows through a wire, the charge of the wire does not change. The flow of electrons creates an electrical current, but the total charge of the wire remains constant.
What is conduction curent?
Conduction current refers to the flow of electric charge through a conducting material, such as a metal wire, due to the movement of free electrons. It is one of the mechanisms by which electric current is transmitted in a circuit.
Which offers more resistance to the flow of charge a thick wire or a thin wire?
Thin wire.
Why do electrons make up the flow of charge in a metal wire rather than protons?
Protons are located in the nucleus of the atom and under normal conditions are not free to move or flow. Electrons in the outermost shells of conducting metals like copper are weakly held and are free to flow. However, it's important to understand that electron flow and charge flow are not the same thing. It is the flow of an electric field through the wire that creates the effect we understand as electricity, not the actual movement of electrons, which is relatively slow.
What constitutes an electric current in a wire?
An electric current in a wire is the flow of electric charge, typically carried by electrons, through the wire. This flow of charge is driven by a voltage difference, or potential difference, between two points in the wire.
Why do electrons rather protons make up the flow of charge in a metal wire?
Protons are located in the nucleus of the atom and under normal conditions are not free to move or flow. Electrons in the outermost shells of conducting metals like copper are weakly held and are free to flow. However, it's important to understand that electron flow and charge flow are not the same thing. It is the flow of an electric field through the wire that creates the effect we understand as electricity, not the actual movement of electrons, which is relatively slow.
How is electricity transmitted through a conducting wire?
Electricity is transmitted through a conducting wire by the movement of electrons. When a voltage is applied to the wire, it creates an electric field that pushes the electrons along the wire, allowing the flow of electricity from one point to another.
Why does increasing voltage of a wire have the same effect on the current that decreasing the resistance has?
Increasing the voltage in a wire causes more electric potential energy per charge, which results in higher energy per charge moving through the wire, leading to an increase in current. Similarly, decreasing the resistance in a circuit allows for more charge to flow with the same applied voltage, resulting in an increased current flow.
How the charge of a wire changes when the electricity current flows in the wire?
When electricity current flows through a wire, the charge of the wire does not change. The flow of electrons creates an electrical current, but the total charge of the wire remains constant.
How can you remove completely the excess charge from a small conducting body?
One method is to connect the body to the Earth using a conducting wire, known as grounding. This allows the excess charge to flow from the body to the Earth, neutralizing the charge. Another method is to place the body in contact with an opposite charged object, causing the charges to neutralize each other.
What is conduction curent?
Conduction current refers to the flow of electric charge through a conducting material, such as a metal wire, due to the movement of free electrons. It is one of the mechanisms by which electric current is transmitted in a circuit.
A flow of electric charge in wire?
When a flow of electric charge passes through a wire, it creates an electric current. This current is caused by the movement of electrons within the wire, which carry the charge from one point to another. The magnitude of the current is measured in amperes (A).
What quality must the charge density on the surface of a conducting wire possess if an electric field is to act on the negatively charged electrons inside the wire?
The charge density on the surface of a conducting wire must be nonuniform, with a tangential component to the surface, in order for an electric field to act on the negatively charged electrons inside the wire. This nonuniform charge distribution creates an electric field inside the wire, allowing for the movement of the electrons.
What condition necessary for the sustained flow of charge in wire?
The necessary condition for the sustained flow of charge in a wire is the presence of a closed circuit or path for the current to flow in. This closed path allows the charges to continuously move and circulate through the wire. Additionally, an external source of electromotive force, such as a battery or a power supply, is required to provide the energy needed to maintain the flow of charge.
