Why does a potato have voltage?

Answer

Potatoes have a voltage because they contain a type of juice that serves as an electrolyte. They also have phosphoric acid that reacts well when used with both the zinc and the copper electrodes.
Q&A Related to "Why does a potato have voltage?"
When two different metals are pushed into a potato a voltage can be measured across the metals. The same is true for many fruits and vegetables. The reason is that chemicals, normally
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There are suggetions that Saturn got its rings from a passing moon that got to close to the gravity pull and ripped it apart. It is also possible that an asteroid hit one of the moons
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Nearly every automobile alternator-generator unit is coupled with a voltage regulator, which determines the actual output of the alternator. The voltage regulator detects the charge
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They would if you grew them confined in a small box (e.g. see japanese square melons) Because soil (where potatoes typically grow) provides little and relatively equal resistance
http://www.quora.com/Why-dont-potatoes-have-edges
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