Fruit Battery
Fruit production of batteries
Do you know that certain fruits and vegetables you eat can also generate electricity do? Try the following experiment!
Tools and Materials
• 3 lemon (lime may be)
• 3 pieces of bright copper Ge. We use the coin
• 3 Ke galvanized screws (you can also use other metals more active, not necessarily zinc, both for replacement on the list)
• 4 son, preferably with a clip on the wire.
• Knife • 1 small paper label pasted
• Low voltage driven light-emitting diode (LED). We use Radio Shack model 276-330.
• 35 rounds mm plastic film or similar small container. Better to use a black hull opaque film.
• a nail or small punch
Zinc-plated screws are available in most hardware stores. They are also known as “electroplating” screws. For galvanized screws to prevent them from rusting, which makes live appearance looks bright. Wire belt clip can be purchased at hardware or electronics store.
Production Method
First, put all the lemons, one at a time. Side of the rotating part of the hand pressing them until you think they have become a little “soft.” This is done to allow internally generated more lemon juice. This step is very important because it can help you achieve the best results of the lemon battery.
Be galvanized screw screwed into a lemon about 1 / 3. Using a knife, be careful with the lemon on the other side 1 / 3 Cut a 1 cm incision.
Note: The best use of a knife by an adult. In all cases, please “watch” and “Slow” using a knife.
Copper in the incision until the coins in half lemon.
Note: Make sure you use a shiny new coin. If the room in the former, but not brilliant, polished with 100 JIES parts.
Whether or not you believe that you can now get underway lemon! Like other batteries, such as coins, is positive (), the screws are negative (-). Unfortunately, the battery is low. However, if you have several of these cells, they can be connected together to form a lemon battery.
As the parts and screws in the other two lemons. Then, using the son and clips, will be the first of a lemon on the screw with the second piece on the whole lemon, and so on, there are three lemon cells connected together. Also a coin to the first and last of a screw connected to a wire with a clip.
Finally, to connect to the first sequence on the marked part “and connect to the last screw nailed clip marked” -. “As a real battery, as the lemon battery is also positive () and negative (-).
When the series of articles, these lemon co-produced the battery cells in series with a small flashlight, some produced by the same voltage, or electric potential of about 2.5 volts to 3 volts between the two . But the lemon battery can not produce enough current to the bulb flashlight.
How can we identify the achievement of specific groups of the battery? One way is to require only 2.5 volts to 3 volts, and does not require too much current, the electrical equipment connected to the battery. Can use a device known as light emitting diodes can also be called LED. Very low voltage and low current can make the LED light.
The LED used the instructions on the box are 5 mm red LED, 1.8 volt, 20 mA. This means that the diameter of 5 mm LED, it requires 1.8 volts and 20 milliamps of current can be slight. In fact, less than 20 milliamps of current can make a little light-emitting LED. dell inspiron 6400 battery Our lemon battery has enough voltage, but current is not sufficient. We must find ways to observe the faint light. We will film in the shell to cut the outside light.
The use of nails, be careful in the film about half of the outer envelope of the two small holes where the top. Allows an adult to help you achieve this step.
Then a small hole marked “the other marked” -. ”
PIN LED will be folded into a smooth curve outward. Then, to observe carefully closing LEDs. It is mostly round. However, if it is placed at a specific point of view, you will see a pin near a flat surface. From this plane, the last pin is the anode. Pictured from left pin is the negative terminal of LED. You can see the left-most pin in the vicinity of the surface of the small apartment, do?
The negative pin and the LED marked “-” alignment film shell hole. Will run shell pressed film. Thanks to the LED cathode to the pin marked “-” the hole, then make another (positive) pin through the words “the hole.
Pull The Pin by the holes and departure to ensure they are marked with the slogan. Also film at the top of the shell label. OK LED to us.
We must all be prepared to wait for the last minute. While the film contains a shell LED marked “” alignment side battery lemon marked “clip”. Lemon battery is marked “-” in the film clip to close the envelope marked “-” side.
Now everything is ready! The LED cathode is connected to the lemon battery positive electrode. The LED cathode is connected to the negative terminal of the battery lemon. LED light!
But the hair of the LED light is very dark, because the current battery is too low. Shells film noir that can help you out in dim light. LED end of the play the role of a magnifying glass. When direct observation of the end of the LED, you can easily see the phenomenon of light.
This proves that you really can be used successfully produced a lemon battery! Congratulations!