Chapter 2
Working with Resistors
IN THIS CHAPTER
Understanding and measuring resistance
Calculating resistance with Ohm’s law
Determining resistor values and tolerance
Working with resistors in series, parallel, and combination
Creating a voltage-divider circuit
Looking at how a potentiometer varies resistance
My favorite science fiction villains are the Borg from Star Trek: The Next Generation. They had a saying: “Resistance is futile.”
In the Star Trek world, it turned out that resistance against the Borg wasn’t futile. Picard and the rest of the crew of the Enterprise resisted and eventually triumphed over the Borg.
In the electronics world, resistance is not futile. In fact, resistance can be very useful. Without resistance, electronics would not be possible. Electronics is all about manipulating the flow of current, and one of the most basic ways to manipulate current is to reduce ...
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