yes, the amount of acid in a fruit does effect its ability to conduct electricty because it can have a higher charge than a fruit with a lower amount of acid.
The water inside the fruit or the vegetable, makes it conduct electricity.
any citrus fruit (such as lemons and limes) is a good conductor of electricity
The acid in the fruit
the acid holds electricity
the juice :( aka pee
Lemons And Limes do make electricity but not a lot.
All fruit has some moisture and, for that reason, all will conduct electricity to some extent. Fruits that conduct electricity best will be those that are juicy with lots of dissolved acid or salts. On a 1 to 10 scale where 10 is best: roasted nuts and banana chips are 1; citrus and tomatoes a 10. Do a web search for "electrolyte".
Usually experiments containg fruit and electricity are ones were you have you fruit and you put to copper poles into it and connect it with wires to a bulb for example and the bulb will light up, getting its power from the fruit.
I think citrus acide produces electricity if I'm wrong do some research.
Because it has a high water content (a good conductor), it most likely does to some extent.
No, passion fruit is not a citrus fruit.