Here's the question...
A rectangular solid made of carbon has sides lying along the x, y, and z axes, whose lengths are 1.06 cm, 2.12 cm, and 4.24 cm, respectively, as seen in figure below. Determine the resistance for current that flows through the solid in the x direction. Assume the resistivity is r = 3.00E-5 W* m.
I got various numbers as answers, and used the formula: R = (row)(L/A) where row is resistivity, in this case 3E-5, L is length (x axis, in this case) and A is surface area of a rectangle. Where am I going wrong?!
THANKS!
1 answer
oh, the resistivity is omega (ohms)*m, not W. sorry!