Asked by namabia
a cylindrical wire of lenght 2.80m and a radius of 1.35A, when the voltage of 0.0320v is applied across the ends of the wire. from what material is the wire made of?
Answers
Answered by
Damon
need radius of wire, not just current
R = V/i = .0320/1.35 = .0237 Ohms
= resistivity * Length/area
so resistivity = .0237 * pi r^2 /2.8
table of conductivity and resistivity here
http://hyperphysics.phy-astr.gsu.edu/hbase/tables/rstiv.html
R = V/i = .0320/1.35 = .0237 Ohms
= resistivity * Length/area
so resistivity = .0237 * pi r^2 /2.8
table of conductivity and resistivity here
http://hyperphysics.phy-astr.gsu.edu/hbase/tables/rstiv.html
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