Then the total current would be where A is the area of the conductor. This is not Ohm’s law, which tells us that the current varies as E. One concludes that electrons don’t accelerate freely all the way across the material, but only for a short distance, presumably until they hit one of the fixed atoms and bounce off in a random direction (“scatter”):
Then the total current would be where A is the area of the conductor. This is not Ohm’s law, which tells us that the current varies as E. One concludes that electrons don’t accelerate freely all the way across the material, but only for a short distance, presumably until they hit one of the fixed atoms and bounce off in a random direction (“scatter”):