Sandwich, the line-following robot, uses many resistors on its circuit board (see Figure 9-1). These resistors are so vital that Sandwich could not operate without them. In this chapter, you’ll learn how to identify, purchase, and test resistors. In later chapters, you’ll put resistors into use in the same way that they’re used on Sandwich.
Figure 9-1.

Five resistors on Sandwich’s circuit board


Circuit Board Color Band Wire Cutter Resistor Figure Variety Pack 
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© David Cook 2009

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  • David Cook

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