Sorry but I didnt fully understand what you were trying to tell me. I know R = rho(L/A), So if I pick an arbitrary length say 10m. How do I find that A of the wire, and furthermore what's canceling out? Confused!
Hey I had a question on my quiz where it asked for the Resistance of aluminum at 600 deg C. But the formula rho-rho(i) = rho(i)a(T-T(i)) only finds the value of the resistivity at 600 deg C how do I convert it to resistance without more given info?
Question: A spool of aluminum wire has a...