Homemade battery does not work - experiments with galvanic sources
Hello. Recently I decided to conduct one experiment, known since high school, by making a home-made battery of two electrodes immersed in an electrolyte, and as a result of a chemical reaction between the two electrodes, voltage arises. Two solid wires, aluminum and copper, each 2.5 mm in cross-section, acted as electrodes for me, and salt water as an electrolyte. I measured a voltage of 0.5 volts with a multimeter. Consistently connected 24 such home-made products and measured the voltage, it became 12 volts. I connected a small 12-volt, 20-watt halogen bulb. The lamp is off. I took 8 1.5 volt finger batteries, connected them in series, connected the same light bulb, it burns. What to make the lamp burn from my homemade product?
Hello. 20 watts is almost 2 amperes of current. Maybe your homemade battery just doesn't pull it. Try to measure its voltage under load. In order for the bulb to burn, you need to increase the area of the electrodes, make two, three such homemade products in parallel.
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