A cylindrical capacitor consists of a solid inner conducting core with radius 0.250 cmcm, surrounded by an outer hollow conducting tube. The two conductors are separated by air, and the length of the cylinder is 10.0 cmcm. The capacitance is 38.5 pFpF. A. Calculate the outer radius of the hollow tube. Express your answer in centimeters. B.When the capacitor is charged to 125 V, what is the charge per unit length λ on the capacitor? Express your answer in coulombs per meter.

A cylindrical capacitor consists of a solid inner conducting core with radius 0.250 cmcm, surrounded by an outer hollow conducting tube. The two conductors are separated by air, and the length of the cylinder is 10.0 cmcm. The capacitance is 38.5 pFpF. A. Calculate the outer radius of the hollow tube. Express your answer in centimeters. B.When the capacitor is charged to 125 V, what is the charge per unit length λ on the capacitor? Express your answer in coulombs per meter.