0
firstly you need a battery or a cell to produce a p.d or to produce current (flow of electrons). the opp charges will always attract each other. therefore, the electrons travel through the wire from the -ve terminal of the battery to the +ve.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
Which of these is a metal wire that allows electrons to flow through it?
conductor
What are ideas to make a homemade atom?
Use different sized beads for the protons and neutrons, and the electrons, and steel wire for the different orbitals.
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.
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.
Atomic explanation as to why a piece of constantan wire with a large diameter has a smaller resistance than a piece of constantan wire with a small diameter?
The larger the wire the more atoms there are to transfer the electrons through the wire. Induced electrons from a power source bump other electrons out of the orbit of the wire atoms thus causing electrons to flow and the induced electrons fall into the orbit of the wire atom until the next loose electron knocks that one out of orbit to the next atom and the next one etc.. It's like a one way game of bumper cars until the electrons get to the end of the wire and into the next conducting substance. This is also the difference between an insulator and a conductor that is how freely an atom gives up its electron when its bumped.
How do protons and electrons affect each other?
Protons don't really relate to electricity. Electron do because electricity is the flow of electrons through a wire. Protons don't really relate to electricity except in some nuclear physics applications. Electrons do because electricity, by definition, is the flow of electrons through a wire. In its most fundamental form, electricity is the movement of charged particles. Protons qualify because they are charged particles. We don't usually cause protons to "flow" like we commonly do electrons, though we do use them frequently in particle accelerators. But protons are not generally thought of as associated with "normal" electricity, which is usually considered to be the movement of electrons. It is the electron that is at the heart of electricity in the electronic world we live in. Wikipedia has all these facts and more. A link is provided.
What is it called when electrons flow through a wire?
When electrons flow through a conductor such as a wire, it is called, "Electricity".
What does a turbine spin around to make electrons flow in a wire?
Not around... moving THROUGH a magnetic field forces electrons to flow through a wire.
How current passes through wire?
though electrons
Howdoes Electricity flow through a wire?
Electricity flow through a wire as a result of the movement of electrons and hols.
How does current electricity?
First you need to understand charge, voltage and current.Atoms are made of electrons, neutrons and protons. Electrons have a kind of charge called negative charge and protons have a positive charge. Neutrons have both negative and positive charges, so they cancel out and are not very important to electricity. Like charges repel each other, while opposite charges attract each other. This is what causes electricity.Sometimes atoms will have more electrons than protons or vice versa. When there are many atoms of something have too few or too many electrons then it gains a net charge depending on if there are more electrons or more protons. If there are more electrons then it has a negative charge, if it has more protons it has a positive charge.Voltage is the difference between two charges. On a 9-volt battery, the difference between charge of the positive terminal and the negative terminal will be nine times as much as the difference of charge on the terminals of a 1-volt battery.Now since opposite charges attract, the electrons in the negative terminal want to move to the positive terminal (protons don't move because they are in the center of an atom). The only thing stopping the electrons from jumping to the positive terminal is air because it has a lot of resistance.Resistance is how hard it is for electrons to move through a material. Copper wire has a very low resistance, so when you connect the two terminals together with wire, electrons start moving across the wire from the negative terminal to the positive terminal. Electrons move slowly across the wire, but they start a chain reaction in the atoms that make the wire so that now almost all the atoms want to give some of their electrons to the positive terminal. This reaction moves very fast, almost at the speed of light, and that's things power up almost instantly once they are connected to a power source even though the electrons themselves move slowly. The movement of these electrons is called current, and that's what powers electric devices.
What happens when electricity flow through wires?
Electrons move through the wire
Which of these is a metal wire that allows electrons to flow through it?
conductor
What is produced whenever there is a flow of electrons in a wire?
Electric current is the movement of electrons through a conductor.
If more electrons were flowing through a wire what would be increased?
If more electrons were flowing through a wire, the thing that would be increased would be the current. This is the flow of the carriers of electrical charges.
Is copper wire is magnetic?
it produces a magnetic field. i think that if current is passed through the wire it can attract pieces of iron
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.
