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Electrostatics: Capacitance of a cylindrical capacitor.

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A capacitor is made from two hollow, coaxial, iron cylinders, one inside the other. The inner cylinder is negatively charged and the outer is positively charged; the magnitude of the charge on each is 10.0 pC. The inner cylinder has a radius of 0.200 mm, the outer one has a radius of 5.40 mm , and the length of each cylinder is 25.0 cm.

1) What is the capacitance?
Use 8.854×10−12 F/m for the permittivity of free space.

2) What applied potential difference is necessary to produce these charges on the cylinders?

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Solution Summary

Capacitance of cylindrical capacitor is calculated as well as the charge on capacitor with given voltage is calculate.

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