What fruit conducts electricity the best and how?

Citrus fruits like lemons, oranges, etc conduct electricity. They do so when a zinc needle and a copper needle are inserted in them. These two needles act as the polarities and can even light a small torch bulb when connected. Zinc and copper together react with citric acid in these fruits much similar to the reaction in a battery and produce electricity.

And the electricity is guessed by the pH, or acid!

The kiwi conducts the most electricity