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EET 110 – Survey of Electronics. Chapter 1 Basics of Electricity. Introduction. Electrical Systems Diagrams Block (system) Pictorial Schematic Components Source Path Control Load Indicator. Energy, Work and Power. Energy Kinetic Energy Potential Energy Chemical Energy Work

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eet 110 survey of electronics

EET 110 – Survey of Electronics

Chapter 1

Basics of Electricity

introduction
Introduction
  • Electrical Systems
    • Diagrams
      • Block (system)
      • Pictorial
      • Schematic
    • Components
      • Source
      • Path
      • Control
      • Load
      • Indicator
energy work and power
Energy, Work and Power
  • Energy
    • Kinetic Energy
    • Potential Energy
    • Chemical Energy
  • Work
    • Conversion of Energy
  • Power
    • Rate at which work is done
structure of matter
Structure of Matter
  • Atom
    • Mode of Atom
    • Electrons
    • Nucleus
      • Neutrons
      • Protons
    • Orbit
    • Valence Layer
electrical charges
Electrical Charges
  • Like charges repel
  • Opposites attract
  • Each charge is surrounded by an electrostatic field
static electricity
Static Electricity
  • A collection of charged particles accumulated on a material
  • Examples
    • Lightning
    • Dry Montana effect
electrical current
Electrical Current
  • Movement of electrons – current flow
  • Potential for electrons to flow – voltage or electrical potential
  • Conductors
    • Single electron in valence layer
  • Insulator
    • Full valence layer
other material
Other material
  • Semiconductors
    • Exactly four electrons in the valence layer
  • Superconductors
    • The Holy Grail of electronics
    • No resistance AT ALL
electrical circuits
Electrical Circuits
  • Conventional Current Flow
  • Electron flow
  • Charge
    • 1 coulomb = 6.25x1018 electrons
  • Rate of electron flow
    • 1 Ampere or 1 Amp = 1 Coulomb per second
electro motive force
Electro-Motive Force
  • EMF
  • Voltage
  • Electrical Potential
  • Measured in Volts
resistance
Resistance
  • The opposition to current flow
  • Dependent on
    • Material
    • Length
    • Area
    • Temperature
  • Measured in OHMS
  • The inverse of conductance (Mhos or Siemens)
formulas
Formulas
  • Current is given as I
  • Voltage as either V or E
  • Resistance as R
assignment
Assignment
  • Read Chapter 2 – complete review questions
  • Locate the web page
  • techsci.msun.edu/strizich/index.html
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