Problem
The problem for this project is that we have to create a circuit of any type using and led and a vegetable that can serve as the battery or power source for voltage. When creating the circuit, we must use a vegetable or fruit that can give out voltage to power on an LED without using an actual battery.
When doing this experiment, there might be many flaws because of a low percentage of finding the fruits or vegetables that can give off a strong amount of voltage to power the LED. It will take a long period of time to find a good amount of fruits or vegetables that can give off a lot of voltage. They are hard to find.
When doing this experiment, there might be many flaws because of a low percentage of finding the fruits or vegetables that can give off a strong amount of voltage to power the LED. It will take a long period of time to find a good amount of fruits or vegetables that can give off a lot of voltage. They are hard to find.
Solution
For my circuit I used two potatoes. One potato cut in half and one whole potato all in series. I also used three copper pennies and three zinc nails. Using the half potato, I put in one copper penny and one zinc nail. I do the same with the other half. The zinc nail acts as the negative charge while the copper penny acts like the positive charge.
On the whole potato, I also put one copper penny and one zinc nail. After connecting all the wires together, the circuit would not light up the LED. Since the potato could not give out enough voltage to power the LED. So instead I put a 9V battery into the circuit and it seemed that the potatoes actually served as a resistor. Normally a 9V battery would blow the LED, but when connected with the potatoes, it did not blow and it stayed on normally.
On the whole potato, I also put one copper penny and one zinc nail. After connecting all the wires together, the circuit would not light up the LED. Since the potato could not give out enough voltage to power the LED. So instead I put a 9V battery into the circuit and it seemed that the potatoes actually served as a resistor. Normally a 9V battery would blow the LED, but when connected with the potatoes, it did not blow and it stayed on normally.
Evidence
Sources
http://www.bbc.co.uk/guides/z86syrd
http://www.instructables.com/id/Potato-Battery-Driven-LED/
http://www.instructables.com/id/Potato-Battery-Driven-LED/
Feedback
I really liked this project because it was pretty fun experimenting with different fruits and vegetables to power an LED. It took me a long time to find a good pair of potatoes that would give off a good amount of voltage to power up the battery. I also learned that fruits and vegetables can actually give out voltage and act like a power source.