Review | Constants Part A The long cylindrical capacitor shown in the figure consists of four concentric cylinders, with respective radii Ra , Rb, Rc, and Ra -(Figure 1) The cylinders b and c are joined by metal strips. Determine the capacitance per unit length of this arrangement. (Assume equal and opposite charges are placed on the innermost and outermost cylinders.) Express your answer in terms of the variables Ra, Rb, Rc, Ra, and appropriate constants. AEQ ? OC B S H K 7 A X 2pA RR In RRd Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining Figure The correct answer does not depend on: pA. Ra