Question: 1. A 20.0 mA current flows through a wire. How many electrons flow though a given cross section of the wire in 15.0 minutes? 2.

1. A 20.0 mA current flows through a wire. How many electrons flow though a given cross section of the wire in 15.0 minutes? 2. A 250 km long high voltage transmission line runs across the open Arizona desert. The copper wire is 1.00 cm in diameter and carries a current of 1200 A. If the free charge carrier density for copper is 8.5 x 1025 electrons per cubic meter, how many years does it take one electron to travel the full length of the cable

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