prediction:
based on my research, some fruits and vegetables can conduct electricity, often providing a current that’s strong enough to act as a battery. Foods that produce electricity are usually high in acidity or potassium. Acids make ions, charged particles when placed in a solution like, water, which many types of fruits and vegetables contain in abundance. My guess are..
potatoes
Potatoes may also work because it naturally contains salt, which is one of the most important ingredients in conducting electricity. In electricity, salt is important on conducting the current in the form of ions.
lemon
the juice of the lemon contains citric acid. It conduct electricity because the charged particles are able to flow within the acid. It works as a powerful electrolyte and serves as a reservoir for transfer of electrons. Lemons might work.
