Electrons acceleration in a wire

jeudi 31 juillet 2014

I have some questions about electrons flow.

1)Lets say we have a simple circuit with a metal wire and a battery supplier.Firstly if we can imagine an electrons flow in a conductive material like metal but with zero resistance and no atoms for the electrons to collide , the Fc1 force from the negative pole which repels electrons and the Fc2 of the positive pole that attracts them are both non constant and distance depended forces.So,Fsum=Fc1+Fc2.Ι know that electrons in this case would do an accelerative motion , but is Fsum as a sum force constant and thus electrons acceleration same at each point in this case or they do accelerate till the end but with bigger and smaller accelerations at each point?

I put that this way in order to understand if in a metal wire after each collision with atoms the electric field acceleration gained by an electron at different points throughout the wire is different or is constant.

2)The second question is depended on the answer of the first.According to my thinking electrons would do an accelerative motion throughout a metal wire (let's say an 1 meter wire example) but the acceleration would change prices at each point as it moves.So,how is it possible if the net accelerations are different at each point throughout the wire in a series circuit the current to be the same at each point? Different accelerations would accumulate in every wire point different amounts of electrons.If we suppose net accelerations decrease for a small distance of 0.03 cm ,then previous electrons with higher accelerations will move a bit faster and those that have pass the 0.03 cms will move just a bit slower.So distribution would change very slightly.So,how come current is the same in every point?





Thanks in advance for the try and your time but please i don't want an answer with just a link to a physics law or a mathematical formula.I am student in university and i know the basics.I would just like a descriptive and serious answer.The meaning.





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