Why do fruits conduct electricity?
Fruits are essential elements in our lives. There are many types of fruits, such as apples, bananas, pears, grapes... They are all rich in nutrients. However, they also have a particular purpose: to produce electricity.
This morning, I was worried about my thesis. Seeing that time was passing minute by second, I still had no idea, and scratched my head and head anxiously. Seeing that I was so anxious, my mother brought me some fruit to eat. Looking at these fruits, my eyes suddenly lit up and I remembered an experiment in which the fruits produced electricity mentioned in a previous science book. I was delighted and quickly prepared the experimental supplies.
I brought three lemons (maybe other fruits), a fruit knife, a small light bulb and some wires connected to leaves ofe copper and zinc.
First, turn all the lemons over and squeeze them, turning them until they are soft. This will allow all the juice from the pulp of the lemon to come out and also for the lemon bulb to function better.
Secondly, use a fruit knife to cut two small slits 1 cm long on 1/3 of one side of each lemon, put the copper foil and the leaf there respectively zinc, and put one of the copper pieces on the lemon is connected to the zinc piece on the other lemon, but the ends are not connected. Finally, connect both ends of the wires to the positive and negative terminals of the bulb.
"Yeah, yeah, my light is on!" I saw the little light bulb lit and I couldn't help but applaud. The “Fruit Bulb” experiment was a success!
But why do fruits produce electricity? After searching for information, I understood: lemons do not produce electricity. The reason they produce electricity is due to the galvanic effect of two metals in the acid! It turns out that lemon is a juicy fruit rich in citric acid. If we connect at its spaced ends two metallic conductors presenting large differences in activity, such as silver-iron, copper-iron, aluminum-iron or copper, zinc, etc. ., when the two ends of the conductor are connected to form a loop, the electrolytic reaction of the two metals in the acid solution will generate current in the circuit, which is its galvanic cell reaction. Not only lemons, but also fruits with fruit acid, amylase and pH.
Oh that's it, it looks like fruit can also be used instead of batteries! After this experience, I understood many scientific principles and the vastness of the scientific field. In the future, I want to explore morescience !