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Voltage Divider Mystery Cache

Hidden : 10/13/2016
Difficulty:
3.5 out of 5
Terrain:
3 out of 5

Size: Size:   micro (micro)

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Geocache Description:

Solve some voltage divider challenges to get the coords you need to win another mystery smiley. 


Resistors are arguably the most common electronic device. They're so prevalent most of us use them daily.

The resistor's primary job is to limit the amount of current that flows through a circuit. Ohm is the unit used to express how much resistance a resistor provides.  The uppercase Greek letter Omega represents this unit. 

 

Typical 1/4-Watt Resistors 

 photo resistors.png

 

Ohm symbol

 photo 7404011-3d-Greek-letter-Omega-isolated-in-white-Stock-Photo.jpg

 

I call your attention to the colorful bands on the resistors in the image above. They have a special meaning based on color and position.  I'll share a handy color-chart that should prove useful in determining a given resistor value. You'll use the chart to help you solve the six challenges of this fun, educational, puzzle cache.  

  

 photo colorcode-en.png

 

 

For this challenge you'll also want to reference the Open Circuit Behavior model of a two resistor voltage divider.  I direct your attention to the diagram on the left side of the informative image below. 

 photo Cache 4 - Voltage divider - use open circuit model.jpg

 

Solve for Position Q - Calculate the voltage on the DVM

 

 

Solve for Position W - Calculate the voltage on the DVM

 

 photo Cache 4 - position W.jpg

 

Solve for Position E - Calculate the voltage on the DVM

 

 photo Cache 4 - Position E.jpg

 

Solve for Position R - Calculate the voltage on the DVM

 

 photo Cache 4 - Position R.jpg

 

Solve for Position T - Calculate the voltage on the DVM

 

 photo Cache 4 - Position T.jpg

 

Solve for Position Y - Calculate the voltage on the DVM

 

 photo Cache 4 - Position Y.jpg

 

 photo Cache 4 - coords and checksums.jpg

 

  



I placed an 'easter egg' in the gallery for cachers interested in such things.



I will add geochecker validation and statistics links soon.

 

Additional Hints (Decrypt)

Xrrc vg fvzcyr. Cenpgvpny unaqf-ba xabjyrqtr bs ryrpgebavpf vf shaqnzragny. Gur onpxtebhaq va gur punyyratrf vf xabja nf n 'oernqobneq.'

Decryption Key

A|B|C|D|E|F|G|H|I|J|K|L|M
-------------------------
N|O|P|Q|R|S|T|U|V|W|X|Y|Z

(letter above equals below, and vice versa)