Review of voltage, current, resistance, Ohm's Law, Power relationships.
Review of resistors in series and parallel - derived equations for finding equivalent resistance for series and parallel circuits.
Reviewed results of light bulbs from yesterday. 100 W bulb has lower resistance than 60 W light bulb but in series the 60 W light bulb will burn brighter.
Physiological Effects of Current lab/demo
Found dry and wet resistance of Tiffany and Travis.
Demonstrated and then discussed how to use voltmeters and ammeters and how to put them into circuits. Explained what would happen if you connected them incorrectly.
Assigned the remainder of problems from problem sheet 1 for homework.
Wednesday, May 7, 2008
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