Question: The mean time between collisions in iron is 4.2 10 -15 s. What electron current is driven through a 1.8-mm-diameter iron wire by a

The mean time between collisions in iron is 4.2 × 10^-15 s.
What electron current is driven through a 1.8-mm-diameter iron wire by a 0.065 V/m electric field?

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