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CALC A material of resistivity ρ is formed into a solid, truncated cone of height h and radii r1 and r2 at either end (Fig. P25.59). (a) Calculate the resistance of the cone between the two flat end faces. (Hint: Imagine slicing the cone into very many thin disks, and calculate the resistance of one such disk.) (b) Show that your result agrees with Eq. (25.10) when r1 = r2.
Figure P25.59
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