SCEN103 Third Class

Ohm's Law and Electrical Power

• Introduction to Ohm's law
  • Definition of resistance
  • Units for voltage, current, and resistance
• Schematics -- sketching electrical circuits
• Electrical power and energy
  • Delivered by battery
  • Dissipated by resistor
• Utility companies
  • Customer pays for energy delivered
  • For local information, check:
    • Delmarva Power
    • Electric Department of the City of Newark
      -- "Where does all that electricity go?" (local copy)
    • Electric Rate Information from Wisconsin Power & Light

• Get white marker board and collect group.
• Introductions
• Select recorder and reporter.
• Record three things that each member of your group has in common, but not obvious to me by looking. (For example, "We are all wearing jeans" would be readily apparent to me!)
• Record two things different about each member; again, preferably not classifications obvious by casual observation. "We all like different music" is a well-worn example to be avoided.
• Brainstorm group name -- select one?
• Make brief report to class.

"http://www.physics.udel.edu/~watson/scen103/99s/clas0215.html"
Last updated February 15, 1999.
Copyright George Watson, Univ. of Delaware, 1999.