hassam
How To Make A Lemon Battery
February 5th 2009 10:33
A Battery is a actually a small voltaic cell packaged in certain metallic container to provide electric potential. Batteries are our day to day need and with out them we cannot run our cars,motorcycles,appliance,mo biles,generators etc. In other words they are an important source of energy in our lives. Now this energy which battery provided, doesn't come from any magic rather there is a little chemistry going on with in the battery packaging.
Actually there are certain electrolytes that are stored in the battery's container, the battery has a anode and a cathode which we see as the positive and negative terminals of the battery. When we connect the battery to a device, a chemical reaction takes place in the container producing electric charges which form a circuit, providing current to flow from internal electrodes to external device. This chemical energy is converted into electrical energy.
Here you can actually play a little game if you want to make a little battery in your own home. This game is simple and it is done using a lemon. A lemon is basically a nice juicy substance having citric acid with in it. Citric acid is a nice electrolyte which can be good solution for a voltaic cell to be formed.
Thing Required for a Lemon Battery
Like I said batteries are voltaic cells that require two electrodes and an electrolytic solution.
So you require the following things:
1. A galvanized or zinc coated nail
2. A copper coin
How to make a lemon Battery
Now all you need to do is pierce the coin and the nail into the lemon at some space a part. The nail will act as a negative electrode, while the coin will act as positive electrode. After doing this, connect the to ends to a voltmeter taking care of the positive and negative terminal. It will read around 1V. So here you are with a simple battery made out of lemon.
To light small led you need to connect some four lemon together in a similar fashion with positive terminal of one lemon connected to the positive of the other and the same goes for the negative terminals. Use wires having crocodile clips to do this. After this connect the negative terminal of the last unconnected lemon to the negative of the LED and do the same for the positive terminal of the lemon at the other end.
Make sure you know the positive and negative in the LED. The leg coming out of the flat end of the LED is negative and the other is positive.
This is merely an experiment and lacks practical application as one would need approximately 500 lemon to light conventional light bulb.
So try out this little experiment and tell me if you have any trouble.
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Comment by Anonymous