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A flow of electric charge in wire?
direct current
Describe how a battery can create a current in a conducting wire?
The battery produces a voltage; if a conducting wire - or any circuit for that matter - is connected, a current will flow according to Ohm's Law, that is, the current is calculated as voltage / resistance.
What is the condition that is necessary for a charge to move in a wire?
A device to get a current flow through a wire (i.e. from a battery) and no breaks in the wire.
When a conductor is charged the charge moves to the outer surface of the conductor?
True. For instance in a wire, all of the charge is carried on the outside surface of the wire, and not down the center. Why?? Because when the electricity flows down the wire it causes alternating magnetic fields which cause alternating eddy currents within the wire. An eddy current is bascially an electromagnetic area of turbulence, and in this instance makes the flow of electrons easier on the outer edge of the wire. The higher the frequency that the electricity flows through the wire, the stronger the eddy currents and a thinner section of wire will carry the charge.
What is the definition of current-?
Current is known as the flow of an electrical charge. This is carried by moving electrons in a wire.
Which offers more resistance to the flow of charge a thick wire or a thin wire?
Thin 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.
A flow of electric charge in wire?
direct current
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.
Describe how a battery can create a current in a conducting wire?
The battery produces a voltage; if a conducting wire - or any circuit for that matter - is connected, a current will flow according to Ohm's Law, that is, the current is calculated as voltage / resistance.
What analogous condition for the sustained flow of charge in a wire?
For example, you can make an analogy with the flow of water in a tube.
What is the condition that is necessary for a charge to move in a wire?
A device to get a current flow through a wire (i.e. from a battery) and no breaks in the wire.
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?
non uniform
How is the direction of current related to direction of flow of charge in a wire?
The relationship is quite intimate. "Current" and "flow of charge" are two names for exactly the same thing.
When a conductor is charged the charge moves to the outer surface of the conductor?
True. For instance in a wire, all of the charge is carried on the outside surface of the wire, and not down the center. Why?? Because when the electricity flows down the wire it causes alternating magnetic fields which cause alternating eddy currents within the wire. An eddy current is bascially an electromagnetic area of turbulence, and in this instance makes the flow of electrons easier on the outer edge of the wire. The higher the frequency that the electricity flows through the wire, the stronger the eddy currents and a thinner section of wire will carry the charge.
What is A conducting wire that provides a controlled path for electric current?
A normal wire has a type of metal (not sure what type) that Makes electricity flow through in the direction. I hope this answers your question.
What is the definition of current-?
Current is known as the flow of an electrical charge. This is carried by moving electrons in a wire.
