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The valance electrons.
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Electric current in a metal conductor is carried by?
Electric current in a metal conductor is carried by a wire. This wire has been specifically adapted to carry this current.
Is the electric current in a metal conductor is carried by positive ions?
Yes
Why is metal the best conductor of heat?
Because its electron conduction band is filled with a freely moving "electron gas" that heats up and can move throughout the metal (same as an electric current is a "wind" in this "electron gas"). In other materials the electrons are localized.
Why is a metal with three outer electrons a better conductor that a metal with one outer electron?
Because an electric current is basically electrons moving along, so if there are more slightly freer electrons there wil be a greater facility for electron movement.
The electric current in a metal conductor is carried by?
Valence shell electrons. A metal is formed from a lattice of positive ions in a sea of delocalized electrons. These electrons are the valence shell electrons of the metal atoms and they are the ones that carry the charge during conduction.
What happens to metals as they conduct electricity?
The electrons in a conductor will support the movement of electric current. A conductor is defined as a material with a number of electrons in its makeup that are actually in what is called the conduction band. The conduction band is an energy level where electrons must be to permit conduction in a material. If the minimum energy in the conduction band in a material is such that a lot of electrons in that material are already at or above that level, then these electrons will be available to support current flow. Remember that electron current flow is moving electrons, and it is not about sending an electron into a conductor, like a wire, at one end and getting that same electron out at the other. It is about sending a bunch of them in at one end, and all the electrons already in the conductor move over and a bunch come out the other end. The electrons already in the conduction band within the conductor support current flow in this way.
How does large amount of current flow through a conductor despite low drift velocity and small charge on an electron?
This is because the number of electrons (or charge carriers) in a conductor is very very high; such as, up to 1023 electrons in unit area of a metal conductor. The combined effect of the drift velocities and charges in the entire body of the conductor enable the flow of huge amount of charges (current) through it.
What is the eddycurrent principle?
there is a permanent magnet and a conductor (metal)in relation. when the conductor is moved by cutting the magnetic relay. there will be a charge in the conductor. this is the eddy current priciple
What metal is a good conductor of thermal energy and electric current?
aluminum, copper,
What happens if a conductor was not metal but yarn?
Yarn is a very poor conductor. I you replaced wire in a circuit with yarn, there would be no current flow.
When electric current flows through a metal wire?
current flows through the conductor due to the motion of the free charge carriers present in it. The more charge carriers present in the conductor, the more current flow through that conductor. No free carriers present in the insulator and hence no current flows through insulator. thus..free charge carriers causes the current flows through the conductor.
What are free electrons of conductor?
First we have to define the word an electron, An electron is negatively charged particle. A metal is a substance consists of number of both electrons and protons. Electrons emitted from the metal surface through different ways such ways as Thermionic, Photoelectric, etc. Free electrons of conductor are electrons emitted from conductor when it disturbed through ways as mentioned above
