Lecture%2010%202220%20Spring%202009

Lecture%2010%202220%20Spring%202009 - Physics 2220...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Physics 2220 Announcements: HW 6 is due today HW 7 is due next Tuesday Exam 1 is a week from next Monday Help room (Physics 117) hours Help room (Physics 117) hours: Monday 4-8 pm Tuesday and Wednesday 3-6:30 pm Thursday 4:30-8 pm Friday 2-6 pm Turn in a piece of paper with name and responses if you don’t have your clicker with you today, or if you haven’t given me your clicker ID yet Capacitance of a Cylindrical Capacitor • From Gauss’s Law, the field between the cylinders is E = 2 k e λ / r Δ V = -2 k e λ ln ( b / a ) • The capacitance becomes () 2l n / e Q C Vkb a == Δ l Capacitance of a Spherical Capacitor • The potential difference will be 11 ⎛⎞ • The capacitance will be e Vk Q ba Δ ⎜⎟ ⎝⎠ e Qa b C Vkba Δ− Capacitance – Isolated Sphere • Assume a spherical charged conductor • Assume V = 0 at infinity 4 / o ee QQR C πε R Q Rk = = Δ Circuit Symbols • A circuit diagram is a simplified representation of an actual circuit • Circuit symbols are used to represent the various
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This document was uploaded on 09/30/2009.

Page1 / 3

Lecture%2010%202220%20Spring%202009 - Physics 2220...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online