Requirements
- A tin can about
10cms in diameter and 13cms high.
- About 30cms of
nichrome wire.
- A wooden base with
two nails- A 9V battery.
- Two short lengths
of ceramic pipes.
- Insulating wires.
-With the help of an
adult, cut out about a third of the side of the tin can.
- Make two small
holes in the sides of the tin and insert the ceramic tubes.
- Wind the nichrome
resistance wire round a knitting needle to make a coil.
- Withdraw the needle
and put the ends of the wire through the holes of the ceramic pipes.
- Connect these ends
with the help of insulating wires of two nails fixed to the wooden board.
- Finally nail the tin can to the base.
- Connect the
terminals to the battery and see how the nichrome rod glows red. This is your
heating coil. The heat from the element will be reflected from the inside of
the tin.
I have a question. What is the purpose of the clay stem pipe? Do you know where I could find one in stores? I've been searching but can't find one anywhere for a cheap price! And also, do you know if I can use any other insulating material other than the clay stem pipe for this experiment to go the same way?
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