The discussion centers on the behavior of electrons in an infinitely long conductor connected to two charged conductive spheres, one positively charged and the other negatively charged. It is established that an electric potential difference is necessary for current to flow, despite the electric fields at points A and B being zero. The flow of electrons occurs as they are drained from the positive sphere to neutralize its charge, while excess electrons from the negative sphere enter the conductor. However, this flow is temporary, as the charge difference between the spheres will quickly balance, halting the current.
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I mean two spheres are so distant that their electric fields do not interactPeroK said:An infinitely long conductor has no ends.
You still must have an electric potential difference. And interaction between the charges in the conductor and the spheres at either end.erocored said:I mean two spheres are so distant that their electric fields do not interact
Then what will move electrons through the segment AB?PeroK said:You still must have an electric potential difference.
The electric field is never zero for either sphere.erocored said:Then what will move electrons through the segment AB?
spheres are conductors. Is this almost zero electric field enough to move electrons?PeroK said:The electric field is never zero for either sphere.
Are the spheres insulators or conductors themselves?
Electrons at one end of the conductor will be drained off to neutralise the positive charge; and the excess electrons on the negative sphere will drain into the conductor. Just as you should expect.erocored said:spheres are conductors. Is this almost zero electric field enough to move electrons?
The flow of electrons is proportional to the strength of the electric field across the conductor. There is no deadband or hysteresis.erocored said:spheres are conductors. Is this almost zero electric field enough to move electrons?