A=29 3:39 0:139 D=12 Will be graded: l. The gure shows cross sections through three long conductors of the same length and the same material, with square cross sections of edge lengths as shown. Conductor B ts snugly within conductor A, and conductor C ts snugly within conductor B. 3. Calculate the cross-sectional area of each conductor in terms of L? (15 points) b. Rank the crosssectional areas of A. B. and C? (15 points) c. Rank the resistance of A, B. and C? Explain how? (20 points) U 4E _____ i D A B C 2. Find the current i of the circuit? (25 points) 1' Do [or grac'ce and earn 125 points! (or completion: 3. Two wires, 0 and b, are made of the same metal and have equal length, but the resistance of wire a is D Q the resistance of wire I) is B Q. How do their diameters compare? 4. When a potential difference is applied to a certain copper wire, a current of D5 A passes through the wire. If the wire was removed from the circuit and replaced with a copper wire of twice the cross-sectional area, what current would flow through the new wire? Assume the wires are identical in all other aspects