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AVR Programming Guides
We have some nice AVR code samples to share. Lots of AVR goodies like timers, interrupts, and pin I/O for the beginner. |
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Watts Tables
Use these tables to help you determine how much various items in your house cost you by the day, month, and year. |
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Saving Electricity
A list of a variety of ways to help you save money by learning how much it costs to run things. |
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Read Your Power Meter
By reading your power meter you can get a good idea of how much various electrical devices cost you. |
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Resistors in Parallel Page 2
Equivalent Resistance
When resistors are in parallel, the overall current that can flow through the circuit goes up just like the traffic goes up. This means that the overall resistance has gone down. When you see two resistors in parallel, you can reduce them to a single, equivalent resistor.
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Resistors in Parallel
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Equivalent Resistance
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Just like in series resistors, we can use this trick to create a resistor that we do not have. However, unlike series resistors, the math in this case is not a simple addition. The equation for resistors in parallel is given below.
Rtotal = (R1 * R2) / (R1 + R2)
This equation is a direct result of Ohms Law applied to both resistors. You do not need to know how to derive the equation, just how to use it.
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