Why do electrons flow through a wire?

Answer 1

An electrical current is simply the flow of free electrons in and on the conductors. So they are a bit like water molecules in a garden hose. And like those water molecules the flow of free electrons can be physically impeded by whatever is in or on the electrical conductor.

When a material is a good conductor, the atoms and molecules of that good conductor do not get in the way of the free electrons. They do not resist the flow of those electrons very much. So even with just a low voltage to push the electrons along, the flow, the current of the electrons is high.

But when a material is a bod conductor, the atoms and molecules of that bad conductor do physically get in the way of those free electrons so that they cannot flow freely through the conductor. The resistance is high in a poor conductor. So it takes a relatively higher voltage to push electrons along in a bad conductor...if indeed they can be pushed at all. Some materials are so bad at conducting it's almost impossible to move those electrons along.

Answer 2

Electrons flow through a wire due to an electric potential difference created by a source such as a battery. This potential difference provides the necessary push for electrons to move in a continuous path, creating an electric current. The movement of electrons is essential for powering devices and transferring electrical energy.

Answer 3

Please remember than every object, no matter how good a conductor it is, would have some inherent resistance. Now this resistance arises due to the fact that when too many electrons flow in a conductor which results in some of colliding with each other and the current cannot be conducted fully. This is what causes a resistive effect inside the conductor.

Thnx....

Answer 4

Electrons flow in a metal because they are not tightly bound to the atoms - they are relatively free to move. However, a current will only flow if a voltage is apply.