Does fruit produce electricity ?
The fruit itself does not produce the electricity; an exchange of electrons between the two electrodes produces the electricity. The function of the fruit is to provide ions so that the reaction can take place. As electrons are stripped from the zinc or aluminum electrode, negative ions move toward it to balance the positive zinc or aluminum ions being produced. As electrons are taken up by the copper electrode, positive ions move toward it to balance the negative charge being produced. (In the case of fruit, it’s actually the acid in the fruit that sucks up electrons, converting H+ into hydrogen gas).
