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A cylindrical capacitor consists of a solid inner conducting core with radius0.300 cm, surrounded by an outer hollow conducting tube. The twoconductors are separated by air, and the length of

the cylinder is 12.5 cm-The capacitance is 35.5 pF. Part ACalculate the outer radius of the hollow tube. Part BWhen the capacitor is charged to 145 V, what is the charge per unit length A on the capacitor?

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