Ch 21 - Halliday Fundamentals of Physics 8e Chapter 21 Notes Electric Charge I What is Physics a historical introduction of electromagnetism II

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

View Full Document Right Arrow Icon
Halliday Fundamentals of Physics 8e: Chapter 21 Notes Electric Charge I. What is Physics? a. historical introduction of electromagnetism II. Electric Charge a. electric charge – intrinsic characteristic of fundamental particles b. likes repel; opposites attract. III. Conductors and Insulators a. conductors – materials through which charge can move rather freely i. i.e. metals like copper, the human body, and tap water. Earth = huge conductor. b. nonconductors/insulators – materials through which charge cannot move freely i. i.e. rubber, plastic, glass, chemically pure water c. semiconductors – intermediate between conductors and insulators i. i .e. silicon, germanium d. superconductors – materials that are perfect conductors, allowing charge to move 100% freely e. Conduction may remove excess charge. f. Conductors have mobile, free electrons called conduction electrons . Nonconductors have 0 or few. g.
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 note was uploaded on 01/19/2009 for the course PHYS 171.102 taught by Professor Heckman during the Fall '98 term at Johns Hopkins.

Page1 / 2

Ch 21 - Halliday Fundamentals of Physics 8e Chapter 21 Notes Electric Charge I What is Physics a historical introduction of electromagnetism II

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