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So, if you looked at my profile you would see that I like physics. When the challenge for “Potatoes” I just knew that I need to do a project that h...
Supplies: Potatoes Galvanized nails Shinny copper pennies Wires with alligator clips on each end (2+ per battery) LED bulb Multi meter Knife ...
A battery is a way to store electrical energy. For a battery to work it needs to have 3 things, two electrodes (metals, one + and one -) and electr...
Take a potato
and cut it in half. This will make 2 batteries. Potatoes are juicy, which is part of the reason they can be made into batteries.
Take a knife and put a slit in the potato and slip the penny into the slit. Push as much of the penny into the slit as possible, you want just a li...
Turn on the Multimeter and put it at the lowest voltage reading. Make sure the red probe is in the + slot and the black probe is in the – slot.
Use the red line to touch the penny in the potato and the black line to touch the nail. You can read how much voltage you have available in this po...
To increase the voltage, you will need to create more potato batteries and wire them in a series (that means to connect the + electrode of one batte...
Then I used the alligator clips connected to wires and wired first 2 potatoes together,
this time the voltage read 1.69 volts.
Let's take a minute and look at the LED light. It has one long leg and one shorter leg. The longer leg is the anode (+) and the shorter leg is t...
I wired all four batteries together in series, and found what the total voltage is of the 4 batteries was 2.38 volts and I again wired in the LED li...
Finally I wired six batteries in series and it had a 4.05volt reading.
This time the light lit up! Hurray! Potatoes can be used as batteries.
Have fun playing with your new batteries, maybe you would like to experiment with increasing current by wiring the potato batteries in parallel as w...
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