Question

(20%) Problem 5: We have discussed the motion of electrons in a conductor and the conditions under which Ohms law arises in

Part (a) At steady state, which ions move faster, + or -, or do they go with the same speed?

Part (b) Do you expect there to be a net current? If so, in which direction is it?

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Answer #1

A) extended state positive ions move faster because they have a lower drag coefficient which means less drag force s.They have net force greater than the negative charge.

B) as we can see electric field is applied to the left direction which means electron flows to the left direction with the flow velocity then the positive charge which flows to the right direction so overall flow of charge is towards the right direction. show the net positive charge moving towards the right direction creates a current towards the right direction.

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