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Monday, August 6, 2012

Lemon & Potato battery


A lemon battery is a battery used in experiments proposed in many science textbooks around the world. It is made by inserting two different metallic objects, for example a galvanized nail and a copper coin, into an ion bridge (for example a lemon, a potato or paper soaked in salt water or acid).

The copper coin serves as the positive electrode or cathode and the galvanized nail as the

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