Posted by Spencer on Tuesday, February 12, 2008 at 11:50am.
You have to measure the area of the cylinder, that is, the outer radius area minus the inner radius.
You are given the mass, you can look up the density.
mass=density*PI(radiusouter^2-radiusinner^2)*length
Now, solve for (radiusouter^2-radiuinner^2)
Areacopper= PI (radiusouter^2-radiusinner^2) or
areacopper= masscopper/(density*lenght)
current= currentdensity*area
So, did the size of the cylinder affect anything?
There is no inner or outer im guessing it is assumed to be negligibly thick
Nvm Thank you for the insight into the density. I got the anwser now and your right the radius has nothing to do with it.
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