A 4.00 A current runs through a 12 gauge copper wire (diameter 2.05 mm ) and through a light bulb. Copper has 8.51028 free electrons per cubic meter. How many electrons pass through the light bulb each second? What is the current density in the wire? Express your answer in ampers per meter squared. At what speed does a typical electron pass by any given point in the wire? Express your answer in meters per second. If you were to use wire of twice the diameter, which of the above answers would change? Would they increase or decrease