# Chapter 1 - BasicConcepts Chapter1 LearningObjectives...

This preview shows pages 1–7. Sign up to view the full content.

Basic Concepts Chapter 1

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

View Full Document
Learning Objectives Charge Current and Voltage Energy and Power Ideal basic circuit element Passive sign convention
Charge Fundamental electric quantity Unit: Coulomb (C) • Charge of an electron: q e = -1.602 x 10 -19 C Charge of a proton: -q e = +1.602 x 10 -19 C It takes many, many electrons to produce a meaningful amount of electric current.

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

View Full Document
Charge is conserved. This is based on conservation of matter . Electrons and protons are neither be created nor destroyed in an electric circuit. They can only be transferred.
Current Current (i) is the rate at which charge is  passing through an area  i =  q/ t where  i  = the current in Amperes q  = the charge in Coulombs t  = the time in seconds Ampere  = 1 Coulomb/second 1 Ampere =  6,240,000,000,000,000,000 electrons per sec (6.24 x 10 18 )

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

View Full Document
Current is a Signed Quantity In electrical engineering, the positive
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 06/06/2010 for the course E E 302 taught by Professor Mccann during the Spring '09 term at University of Texas at Austin.

### Page1 / 26

Chapter 1 - BasicConcepts Chapter1 LearningObjectives...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online