Potato is usually used to generate electricity. But it is vegetable. Producing electricity will require volt meter, different kinds of fruit and metal. Take lemon as your fruit. The acidic material present in lemon produces electricity. Electrons flow from one metal to another in the acid of fruit. Orange is sometimes also used in place of lemon.
Attach a wire to the metals and put them into the fruit and see how much the volt meter moves. >>> here is the complete procedure >>>> nacaome.tripod.com
Attach a wire to the metals and put them into the fruit and see how much the volt meter moves. >>> here is the complete procedure >>>> nacaome.tripod.com