Extension) Build Your Own Loudspeaker
Prac: An Introduction to the LOUDSPEAKER A loudspeaker turns the electric signal back into the original sound wave. The most important concept of a loudspeaker is that it turns a coil of wire into a magnet. This is because electricity and magnetism are ALWAYS connected. If you have electricity then there is also a magnetic field. Scientists refer to this as ELECTROMAGNETISM. So let's build the voice coil of a loudspeaker by running electricity through a coil of wire and using a magnetic to detect its magnetic field. |
Make your own speaker!!!!
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Practical: Making Liquid Magnets