In Figure a, a 9.00 V battery is connected to a resistive strip that consists of three sections with the same cross sectional areas but different conductivities. Figure b gives the electric potential V(x) versus position x along the strip. The horizontal scale is set by x = 8.00 mm. Section 3 has conductivity 3.00 x 107 (? ? m)-1. What is the conductivity of section?(a) 1 and(b) 2?

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x= x, (a) 8. 6. (3) (b) x (mm) (A)A