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#1
June 2nd, 2010, 07:08 AM
posted to microsoft.public.access
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project
Variations
Potatoes, apples or any other fruit or vegetable containing acidity or other electrolyte can be used, but lemons are preferred because of their higher acidity. Other non rusty metal combinations (such as magnesium-copper) are more effective: for example, using a magnesium strip instead of zinc increases the voltage from 1.1 V with zinc to 1.6 V with magnesium. (The exact voltage varies depending on the lemons.) However, zinc and copper are usually preferred because they are reasonably safe and easy to obtain. 
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