How to make a current using a lemon?

Question

Help me please, it's a question of my teacher!!!!!!1

Answer 1

Make electricity from a lemon (or potato)

This experiment will show that electricity can be made by a chemical reaction between fruits and different metals. This method is used in batteries and creates direct current (DC) electricity. Here is a sample recipe for making a fruit battery. Material that you need for this experiment are:

citrus fruit
(lemons or limes work best)
Copper electrode about 5 cm long
Zinc electrode about 5 cm long
One small light bulb (1.3 volts)
Socket for light bulb
Wires
Alligator clips



Step by step instructions:
1. Roll the fruit under the palm of your hand to soften but be careful you don't break the skin. Work it gently on a piece of scrap paper or a paper towel. (If you are using potato, skip this step)

2. Mount your bulb socket (base) on the board, cut about 1.5 feet wire and carefully remove the insulation of about 1" on each end of your wires.

3. Connect one end of each wire to an alligator clip and the other end to the bulb socket.

4. screw the bulb and use a small AA size battery to test your bulb. (To do this connect alligator clips to the poles of your battery, light bulb should lit.)



5.Insert the electrodes into the fruit about 5 cm apart. Don't allow the electrodes to go through the bottom skin of the fruit. If your electrodes are large sheets, cut as much as you need. Also electrodes should not touch each other.

6. Connect DC volt meter to the electrodes, it should show some voltage. If you see some voltage, connect alligator clips to the electrodes to see if you get some light!




Important notes:

If you just use a Voltmeter to show the electricity, you get a better result because small amount of electricity can simply move the needle of a volt-meter, but can not turn on a light bulb.
More metal surface in contact with fruit results more electricity. Since the produced electricity is so little, you have little chance on turning on a light bulb, but you can definitely show the produced voltage using a multi-meter and you can use that electricity to turn on a digital clock or small digital calculator, because these two need much less electricity than a bulb.


Investigate the probability of using other fruits and vegetables to make electricity. Measure the pH of each "battery" and see if there is a relationship between the pH of the juice and the amount of light that is produced. If you have a multi meter, you can measure the voltage and current produced.




In this sample we are using a copper sulfate solution as an electrolyte (plus a few drops of sulfuric acid). One electrode is copper and the other is zinc. It created 0.9 volts electricity that was able to turn on a 1.2 volts light bulb for about 1 minute..



Light up an LED

L.E.D. or Light Emitting Diode is an electronic light source that needs less electrical current to light up. Use of LEDs instead of miniature light bulbs is recommended by ScienceProject.com because with LEDs, students will have a better chance to get a visible light in their experiments.

Low voltage LEDs are available in electronic stores such as Radio Shack.

Although LEDs do not require much current, they need a minimum voltage of about 3 volts.

Each fruit battery usually creates about one volt. To get a higher voltage you will have to connect 2 or more fruit batteries in series. To do that, you use alligator clip wire leads to connect the copper (+) electrode of one battery to the Zinc (-) electrode of the next battery. At the end, you will connect the LED to the Zinc electrode of the first battery and copper electrode of the last battery.
We used (+) and (-) above just to remind you that copper is always the positive electrode and zinc is the negative electrode.


Identifying the polarity or direction of electricity is especially important when you are trying to light up an LED.

Each LED has 2 legs. One is longer than the other. The longer leg must be connected to the positive pole of the battery or copper. The shorter leg must be connected to the negative electrode or Zinc.

If you don't have enough copper and zinc electrodes, you may cut your existing electrodes in half and make 2 electrodes form one; however, remember that electrodes cannot be very small. The surface contact of the electrodes with the fruit must be as much as possible in order to get the most electric current.



By the way...currant is the berry, not current for those wondering, and yes this question somehow came in the cooking catagory, so it's an easy to understand error.

Answer 2

Meyer Lemon Currant Sauce
6 servings
Recipe courtesy of Brix Restaurant, Yountville, CA

2 cups red currants, fresh
1 each meyer lemon, zested and juiced
2 ounces simple syrup*
1/2 each vanilla bean, split and scraped
1/2 pinch salt

* Simple syrup is equal parts by weight; sugar and water. Bring water to a simmer, add sugar, and remove from heat. It will keep for weeks in the fridge so it’s practical to make extra to have on hand.

Method:
1. Crush currants and place in a stainless steel saucepot, add meyer lemon juice, zest, vanilla bean and simple syrup
2. Place on medium heat. Bring to a simmer for about 5 minutes, skimming surface
3. Strain through a chinois and return to a clean saucepot
4. return to heat and boil for about 5 minutes, until sauce reduces by half and thickens, stirring constantly
5. Chill in icebath
6. Final sauce consistency may be adjusted with simple syrup after it has completely cooled

Answer 3

A current is a fruit, it is not a lemon. You cannot make a lemon into a current.

Answer 4

You constructive could attempt it and notice if it facilitates! I particularly have taken splints off with sturdy iodine. that's rather sturdy stuff and a horse could positioned on a cradle whether that's used even even though it is going to blister one off whether it remains heat. I positioned vasaline around the bump and then intently positioned on the SI the floor will crack and sluff off. however the splints I particularly have positioned it on have long previous away.

Answer 5

<>This site will show you how to generate electrical current from a lemon:
http://www.energyquest.ca.gov/projects/lemon.html