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Unformatted text preview: gonzales (pag757) Homework 5 Hoffmann (56745) 1 This print-out should have 11 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. 001 10.0 points A 67 m length of coaxial cable has a solid cylindrical wire inner conductor with a di- ameter of 1 . 311 mm and carries a charge of 10 . 88 C. The surrounding conductor is a cylindrical shell and has an inner diameter of 11 . 287 mm and a charge of- 10 . 88 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. 002 10.0 points A parallel-plate capacitor is charged by con- necting it to a battery. If the battery is disconnected and the sep- aration between the plates is increased, what will happen to the charge on the capacitor and the electric potential across it? 1. The charge remains fixed and the electric potential increases. 2. The charge increases and the electric po- tential remains fixed. 3. The charge and the electric potential de- crease. 4. The charge decreases and the electric po- tential increases. 5. The charge increases and the electric po- tential decreases. 6. The charge and the electric potential in- crease....
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