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What is the ability of a material to oppose the movement of electrons through it?
Wiki User
∙ 13y ago
A material that has a high resistance to the flow of electrons is an insulator.
Wiki User
∙ 8y ago
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Is conducting electricity a physical change or a chemical change?
It's neither since the copper isn't changing at all. Electrons are just flowing through the copper atoms.
The opposition to the movement of charges flowing through a material is called what?
RESISTANCE.
What is a good insulator of electicity?
It is usually a material that has no free electrons in its out valance rings. This condition makes it hard for free electrons to move from one atom to another atom easily. Without this movement of electrons the material is classed as an insulator. Easy movement of electrons from one atom to another is classed as a conductor the very opposite of an insulator. In the electrical field, the purpose of any insulating material is to separate electrical conductors without passing current through it. Material like PVC, glass, asbestos, rigid laminate, varnish, resin, paper, Teflon, and rubber are very good electrical insulators. Insulating material is used as a protective coating on electrical wire and cables. For article on electrical insulating material click on the related link.
A material that doesnt allow electrons to move through it easily is an?
insulator...as opposed to a conductor which does allow electrons to travel freely within it.
Why electron freely in a metal?
The term conductor is generally applied to a substance or material that has a lot of free electrons in it. The name conductor is applied because the free electrons are already there. A material does not have free electrons because it is a conductor, but is a conductor because it has a lot of free electrons. That said, let's look at what's going on. These free electrons have energies that permit them to "wander" through the conductor; they're not "locked into" the structure of the material. And when a voltage (potential difference) is applied, current flows through the conductor because the free electrons are moving. They're made to move by the applied voltage. If we take the case of a wire in a circuit, the wire is a conductor. This wire, say a copper one, has many free electrons in it, and when we apply a voltage, electrons move. The voltage forces electrons into one end of the wire, and the free electrons "shift over" and electrons emerge from the other end of the wire. This movement of free electrons in response to an applied voltage through an conductor is the essence of current flow in that conductor.
The drifting movement of electrons through a material in response to an electric charge placed at one end is typical of what type of material?
Metals.
Electrons do not readily flow through what material?
The material that electrons do not readily flow through in the electrical trade is classed an an insulator.
Does resistance flow through a circuit?
No. Resistance does not flow. Resistance is the characteristic of a material that resists the movement of electrons and thus the flow of electrical current.
Is the movement of energy through a material due to some movement within the material?
on no sefwef
What is a material that does not let electrons travel through it?
Generally speaking, a material that does not let electrons travel through it, a material that has a very high resistance to electron flow (electric current), is called an insulator.
What stopps electrons from passing through a material?
magnetism
Does thermal energy have slow moving particle?
You are perhaps thinking of thermal conduction? Heat travels by conduction through a material by atoms of the material vibrating and passing this movement on through the material, it is also helped by free electrons which exist in good conductors like most metals.
What is produced whenever there is a flow of electrons in a wire?
Electric current is the movement of electrons through a conductor.
A conductor differs from an insulator in that a conductor is an?
A conductor is a material that has one or a few electrons in the outer shell of its atoms. These electrons are easily knocked loose, or are already moving about in the material. When a voltage is applied to a conductor, these electrons are repelled by the negative polarity and attracted by the positive polarity. Their movement is called "current". a conductor is a material that transports electrons and electricity can pass through it, metals are good conductors. a insulator is something that is a barrier to electrons and can not pass electricity, rubber is a good insulator.
What is the measurement of how difficult it is for electrons to flow through a material?
Resistance.
What material is most difficult for electrons to flow through?
glass
Which material is it most difficult for electrons to flow through?
glass
