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Fruits and vegetables as such does not actually produce electricity.

They do however poduce various acids.

These acids can and will together with various metals make it possible to shift electrons from one metal to another.

Metals can not be the same. Metals like Copper, Silver and Zinc work very well. Preferably Copper and Zinc, or Silver and Zinc. Copper and Silver works too, but produces lower voltage.

It is the electrons flowing from one metal to another via the acid that makes the electricity.

Note:

many factors determine the actual voltage and the current possible to drain from your home-made battery.

The current is dependent on the contact surface of your chosen metals. Very large surface can make a large current. Small surface makes a small curent.

The voltage is dependent on how many fruit 'batteries' you connect in series. you may get between 0.2 and 2 volt per fruit, depending on metal and how acidic the fruit is. Citrus fruits like lemon is very suitable.

Warning:

Do not eat the fruit afterwards as they will contain a dissolved solution of metals. That may be harmfull.

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13y ago
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12y ago

Fruit does not normally produce electricity. However, the chemical potential (ions) in citric acid can be used to produce tiny amounts of electric current.

A "battery" can be made using copper brads and zinc-coated (galvanized) nails inserted into a lemon or other citrus fruit. The two nails are inserted some distance apart into a lemon that has been partially pulverized (made soft and juicy). The chemical reaction with the citric acid will cause a small current between the copper nail and the zinc nail. If you connect a wire from each to a flashlight bulb (1.5 volts), it will light up!

This will also work with potatoes that are very moist inside. The current between a copper implant (one end) and a zinc implant (on the other) can very temporarily power small electronic clocks and other devices.

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10y ago

a lemon
An apple
the answer is usually either a lemon or a orange

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Q: What fruit produces the most electricity?
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