A 500-a current run throug a 12-guege copper wire diameter

A 5.00-A current run throug a 12-guege copper wire (diameter 2.05 mm) and through a light bulb. Copper has 8.5x10^28 free electrons per cubic meter.

a) How many electron pass throuh the light bulb each second ?

b) what is the current density in the wire ?

c) at what speed does a typical electron pass by any given point in the wire ?

d) If you were to use wire of twice the diameter, wich of the above answer would change? would they incrase or decrease?

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A 500-a current run throug a 12-guege copper wire diameter : a 5.00-a current run throug a 12-guege copper wire diameter 2.05 mm and through a light bulb. copper has 8.5x1028 free

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