ch16notes - represented as a vector at every point in space...

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

View Full Document Right Arrow Icon
Chapter 16 Notes College Physics by Giambattista et al. John B. Ross, Ph.D. IUPUI Physics Dept. Electric Charge fundamental property of matter basis of al electric and magnetic phenomena The Atom: Proton charge +1 Electron charge –1 Neutron charge 0 Net charge q net = q (+) + q (–) Neutral means q net = 0 Law of Conservation of Charge : Net charge of a closed system never changes. Polarization – neutral object has (+) separated from (–). Discuss conductors, insulators, semiconductors, superconductors Grounding – create a conducting path to the ground (common discharge method). Charging Macroscopic Objects : q net (+) lost electrons, q net (–) gained electrons 1) Rubbing – friction 2) Conduction – contact 3) Induction – polarize, then ground Coulomb’s Law unlikes attract, likes repel q 1 q 2 2 2 1 r q q k F E q 1 , q 2 must be measured in coulombs (C) r k = 8.99×10 9 N-m 2 /C 2 Elementary charge e = 1.602×10 –19 C = charge on proton/electron Electric Field invisible “signal” around every charge
Background image of page 1

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

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

Unformatted text preview: represented as a vector at every point in space F E = q E my field causes your force and vice versa 2 r q k E magnitude of field at distance r from single point charge Chapter 16 Notes College Physics by Giambattista et al. John B. Ross, Ph.D. IUPUI Physics Dept. Accelerator Problems, Part 1 : a = F E / m = q E / m + constant acceleration toolkit: v f = v i + at d = v i t + at 2 d = ( v i + v f ) t v f 2 = v i 2 + 2 ad Kinetic energy K = mv 2 Conductors in Electrostatic Equilibrium why should you stay inside your car during a thunderstorm? Suppose lightning deposits a net charge to your neutral car. What happens? 1) Excess charge stays on outer surface. 2) Excess charge accumulates along sharp points and edges. 3) No electric field penetrates to the interior. 4) Electric field sits perpendicularly to the outer surface....
View Full Document

This note was uploaded on 12/01/2010 for the course PHYSICS 21900 taught by Professor Rhoads during the Spring '10 term at IUPUI.

Page1 / 2

ch16notes - represented as a vector at every point in space...

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