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Unformatted text preview: Version 001 – Homework 5 – Hoffmann – (56605) 1 This print-out should have 10 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. Cylindrical Capacitor 03 v1 001 10.0 points A 34 m length of coaxial cable has a solid cylindrical wire inner conductor with a di- ameter of 4 . 024 mm and carries a charge of 5 . 17 μ C. The surrounding conductor is a cylindrical shell and has an inner diameter of 5 . 935 mm and a charge of − 5 . 17 μ C. Assume the region between the conductors is air. The Coulomb constant is 8 . 98755 × 10 9 N · m 2 / C 2 . What is the capacitance of this cable? Answer in units of nF Battery and Charged Capacitor 002 10.0 points A parallel-plate capacitor is charged by con- necting it to a battery. If the battery is disconnected and then the separation between the plates is increased, what will happen to the charge on the capac- itor and the electric potential across it? 1. The charge decreases and the electric po- tential increases. 2. The charge and the electric potential in- crease....
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