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Electricity - Test a Light Bulb & Battery
 
Checking a Bulb and a Battery
Materials you will need:

• A new or working battery (1.5v)
• Flashlight Light Bulb
• A strip of aluminum kitchen foil
 
How can you check to see if your flashlight light bulb has blown or if the battery has gone dead?
Steps

Have you even been camping and tried to switch on your flashlight to find that it doesn't light up?  Here is a very simple and fun way to test to see if you need a new light bulb or a new battery.

Steps:

1.  Start by using a new (charged) battery. 
2.  Cut or tear a small strip of kitchen aluminum foil.
3.  Place one end of the aluminum foil on the bottom, negative, end (flat end) of the battery and hold it in place against a flat surface.
4.  Place the light bulb (with the screw-in end) on the top bit (positive end) of the battery.
5.  Next, position the other end of the piece of aluminum foil so that it is touching the screw-in bit of the light bulb and watch to see if the light bulb comes on. 
6.  If the light comes on then you know that the light bulb is working and it is the battery that needs to be replaced.

     

     

This is a good way to test to see if your flashlight isn't working because the bulb has burnt out or if it is the battery (cell) that needs to be replaced. 

More bulb testing photographs here

 
 
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