6. (12 Points) An electrical conductor designed to carry large currents has a circular cross section 2.5 mm in diameter and is 75.0 m long. The resistance between its ends is 0.267 . (a) What is the resistivity of the material? (b) If the electric field magnitude in the conductor is 0.534 V/m, what is the total current? (c) If the material has 8.5 x 1028 electrons per cubic meter, find the average drift speed. 7 (10 Points) Thirteen resistors are connected across points A d B as sho wn in Figure