1. The problem statement, all variables and given/known data[/b] A solid cylindrical conducting shell of inner radius a = 4.9 cm and outer radius b = 6.1 cm has its axis aligned with the z-axis as shown. It carries a uniformly distributed current I2 = 7.4 A in the positive z-direction. An inifinte conducting wire is located along the z-axis and carries a current I1 = 2.8 A in the negative z-direction.https://www.smartphysics.com/Content/Media/Images/EM/15/h15_cylinders.png [Broken] What is ∫B[itex]\bullet[/itex]dl where the integral is taken along the dotted path shown in the figure above: first from point P to point R at (x,y) = (0.707d, 0.707d), and then to point S at (x,y) = (0.6d, 0.6d). 2. Relevant equations Ampere's Law 3. The attempt at a solution Not real sure how to start this question. i know the integral =4*pi*10^-7* I(enclosed) are we suppose to find the charge density of the outer circle?