A tutorial on the basics of electrical resistance, resistors, and Ohm's law which describes the relationship between voltage, current and resistance. I also show you how to build a simple resistor + LED circuit.
300 LEDs for $9: http://www.amazon.com/exec/obidos/ASI...
630 resistors for $9: http://www.amazon.com/exec/obidos/ASI...
9V battery clips: http://www.amazon.com/exec/obidos/ASI...
Adjustable power supply: http://www.amazon.com/exec/obidos/ASI...
(Amazon affiliate links)
Previous video on LEDs:    • LED Basics  
Next video on power and watts:    • Basic Electricity - Power and watts  
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#electronics #physics #engineering