Example Problem: Finding the Cost to Power Light Bulbs and Defining KiloWatt Hour

Here we test the money saving advice given on a package of energy efficient light bulbs.  We also define KiloWatt Hour; a term that often confuses students.  Oh, we also determine the resistance of the light bulbs, ya know, just because we can. (9:29)

Content Times:
0:19 The Advertisement on the Package of Light Bulbs
0:52 Defining the Problem
2:49 Finding the Resistance of the Light Bulbs
4:10 The Power for 3 Light Bulbs
5:12 KiloWatt Hours per Day
6:52 How Many Years Should They Last?
7:25 Defining KiloWatt Hour

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Introduction to Conventional Current and Direct Current with an Example Problem