Wednesday, 4 May 2011

How to Produce Electricity from Vegetables

How to Produce Electricity from Vegetables


You can produce electricity from vegetables and fruits as a science experiment or just for fun. Potatoes are most commonly used, but apples, lemons and other vegetables can be used too. You will create an electric cell with the vegetable. Several cells hooked together is how batteries are made. Experimenting with different vegetables will make cells of various power that you can then compare.

Difficulty:
Easy

Instructions

things you'll need:

  • Potato
  • Galvanized nail
  • Copper wire
  • Headphones
    • 1
      Scrub the potato to remove any dirt. Dirt can get on the wires and prevent the current from flowing.
    • 2
      Stick the nail into the potato so that 1 inch still protrudes. Stick a 3- or 4-inch long copper wire 1 inch into the potato near the nail, but don't let them touch.
    • 3
      Put on the headphones. Touch the tip of the headphone jack to the nail, then touch the copper wire to the metal at the top of the jack. You should hear a small click as the current flows.
    • 4
    • Flowing electricity is formed from the liquid in the potato forming a current between the two different metals in the nail and wire. When you touch them to your headphone jack, you complete the circuit and hear the electricity click. 


      Make Electricity from fruits
      Introduction: 
      This project is one of the most famous electricity projects that can be performed successfully by most students in the age of 10 to 16. It helps students to learn about producing electrical energy using chemical energy. Since the same method is used to get energy from many fruits and chemicals, this project has many names. Following are some of the other names or titles for this project:
      1. Fruit power or fruit battery
      2. Convert Chemical energy to electrical energy
      3. Potato battery or Lemon battery
      Procedure:
      Making electricity from chemicals is based on the same scientific principles on which all modern batteries work. You insert copper and zinc electrodes in an acidic liquid and produce some electricity from the chemical reaction between your electrodes and electrolyte. 
      The electricity produced in this way can be displayed with a multi-meter that can show millivolts. It may also be able to produce enough electricity to get light.  If you want to run or light up a device you must consider the voltage and current requirements of that device.  Picture in the right shows 3 potato batteries connected in series so together they will produce enough voltage to light up a super bright LED type light source.

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