18_InstSolManual_PDF_Part9

18_InstSolManual_PDF_Part9 - Electric Potential and...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Solve: (a) electron: proton: (b) electron: proton: (c) The proton energy is larger by a factor of Reflect: When we use we should express all quantities in SI units. 18.36. Set Up: Solve: (a) (b) 18.37. Set Up: and Solve: 18.38. Set Up: For a parallel-plate capacitor, and Solve: (a) (b) (c) 18.39. Set Up: For a parallel-plate capacitor The surface charge density is Solve: (a) (b) (c) (d) Reflect: If the plates are square, each side is about 18 cm in length. We could also calculate from 18.40. Set Up: when there is air between the plates. Solve: 18.41. Set Up: Solve: (a) (b) When d is doubled C is halved, so Q is halved. Q 5 60 m C. Q 5 CV ab 5 1 10.0 3 10 2 6 F 21 12.0 V 2 5 1.20 3 10 2 4 C 5 120 m C C 5 P 0 A d . C 5 Q V ab . C 5 1 8.854 3 10 2 12 F / m 21 3.0 3 10 2 2 m 2 2 5.0 3 10 2 3 m 5 1.59 3 10 2 12 F 5 1.59 pF C 5 P 0 A d E 5s / P 0 . s s5 Q A 5 0.200 3 10 2 6 C 0.0339 m 2 5 5.90 3 10 2 6 C / m 2 E 5 V ab d 5 400 V 0.600 3 10 2 3 m 5 6.67 3 10 5 V / m A 5 Cd P 0 5 1 500.0 3 10 2 12 F
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/06/2009 for the course PHYS 114 taught by Professor Shoberg during the Spring '07 term at Pittsburg State Uiversity.

Ask a homework question - tutors are online