MAKING A SPEAKER
Today I made our own little speaker using card,some coil and magnets. Firstly I rolled up the card using a sharpie pen as a template to make a roll, then I wrapped copper coil around the tube leaving both ends of the coil sticking out I then put magnet in the middle of the tube then I hooked it up to the amp with mini crocodile clips. The music source came from my phone which was connected the amplifier, when we added a cup to the top of the card tube the sound came out louder. The magnets vibrate creating sound waves that blast out of the card. The microphone works in the same way the speaker works when the magnets move, for example a megaphone.
