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cairoliu
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Common sense: walking on road, there is traction between shoes & earth.
I'm wondering: same thing for electric current's electrons & copper wire?
I'm wondering: same thing for electric current's electrons & copper wire?
Imaging a mouse running in-cage ring track.Drakkith said:I don't think so, and even if there is the force is going to be exerted all along a closed loop, so the recoil would cancel out to zero net force.
Ah, I see what you mean. I didn't take possible rotation into account. There might be a small force as the current ramps up and as it ramps down, but in the steady state there won't be a net force, as the force from the collisions and scattering events between the electrons and the ions would cancel out the accelerating force on the electrons.cairoliu said:he recoil force spins the wheel of ring track, no cancellation of recoil to zero?
The ring track is analog to a closed circuit.
The traction force between moving electrons and copper wire is the force that exists between the negatively charged electrons and the positively charged copper ions in the wire. This force allows the electrons to move through the wire and create an electric current.
The traction force between moving electrons and copper wire is what allows the electrons to move through the wire and create an electric current. Without this force, the electrons would not be able to move through the wire and there would be no flow of electricity.
No, traction force and electrical resistance are two different concepts. Traction force is the force that allows electrons to move through a material, while electrical resistance is the measure of how difficult it is for electrons to flow through a material.
The traction force between moving electrons and copper wire is directly related to the conductivity of the wire. Copper is a highly conductive material, meaning that it allows for easy movement of electrons. This is due to the strong traction force between the electrons and the copper ions in the wire.
Yes, traction force can be manipulated in copper wire by changing the conditions of the wire. For example, increasing the temperature of the wire can weaken the traction force and decrease the flow of electricity. Additionally, adding impurities to the copper can also affect the traction force and alter the conductivity of the wire.