resistance = resistivity * length/area
0.1 = res * 2/ (pi *.0005*.0005)
.05 * pi * 25*10^-8
125 pi * 10^-10
1.25 pi *10*-8
C
A conductor has a diameter of 1.00mm and length 2.00m.if the resistance of the material is 0.1 ohms,it's resistivity is
A.3.93 ×10^-6
B.2.55 ×10^2
C.3.93 ×10^-8
D.2.25×10^2?
1 answer
1 answer