Making A Lemon Battery
Most school children come across a project where they have to make a battery from a lemon. This can be a very difficult project in terms of getting it to work. The concept may sound very simple. Lemon is acidic in nature to an extent, and this property can be used to generate power. |
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Batteries actually consist of 2 metals which act as nodes and are immersed into an acidic solution. You can use copper and zinc to make a lemon battery. The battery you create out of a lemon can at the most light up a LED bulb. So have one handy.
Take a copper penny and a nail that is coated with zinc. Choose a nice big lemon for the experiment. Make sure that the nail is galvanized one.
Insert the penny into the lemon by cutting a small slit into the lemon on one side. Push it half way through inside. Push the nail half way through opposite to the penny. They both should be in a straight line. There should be some distance between them and should not be too close to each other. The penny and the nail function as electrodes, while the citric acid from the lemon works as an electrolyte.
Before inserting the penny and the nail you should wind them by wires on one end and leave the other end open. The single cell battery is now ready. Connect the wires to a small LED bulb and see it glow. This sometimes does not work. In which case you will have to use a smaller bulb. Also, the lemon has to be juicy!
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