physics Help! THANKS?
The population of the Earth is roughly six billion people. If all free electrons contained in this extension cord are evenly split among the humans, how many free electrons (Ne ) would each person get.
I previously found that drift speed is 3.30×10^-4 and that current density is 4.50×10^6. Volume is 5.1X10^-6
Further info:
A current of I= 8A is flowing in a typical extension cord of length L=3m . The cord is made of copper wire with diameter d=0.0015m.
The charge of the electron is e=1.6X10^-19C . The resisitivity of copper is p=1.7X10^-8 ohm m . The concentration of free electrons in copper is n=8.5X10^28 m^-3.
How do I do this??
OMG, I’m having problems with my physics right now, but I’m doing the Principles of Physics so sorry, I’m not that advanced yet. Dx
Eric Schmidt at Mobile World Congress
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