Many people like DIY crafts of electronic technology Today, the editor of the production department has sorted out the hand-making process of using lemon as an electrolyte to make a flashlight. I would like to share it with you and recommend it to everyone. I hope friends who like small inventions will like it.
The electrode materials are copper and Zinc iron nails can light up a low-power LED lamp by connecting several groups of primary batteries in series.
The circuit diagram of the entire device is shown below:
The tool is also very simple to use. A pair of pliers will do the trick
This is a small science experiment purely in the form of a lesson plan, mainly to help children or primary and secondary school students learn the principles of primary batteries. For practical application, it is more practical and convenient to buy a battery.