The resistance and the magnitude of the current depend on the path that the current takes. The drawing shows three situations in which the current takes different paths through a piece of material. Each of the rectangular pieces is made from a material whose resistivity is rho=1.50×10 −2 Ω ∗ m, and the unit of length in the drawing is L 0=7 cm. Each piece of material is connected to a 3.00−V battery. Find (a) the resistance and (b) the current in each case. (a) (b) (c)