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Answer:
The direction of the magnetic field around the coil reverses. The force on the cone now pulls it back in. Repeatedly alternating the current direction makes the cone vibrate in and out. The cone vibrations cause pressure variations in the air, which are sound waves.
Explanation:So as it goes back and forth it makes a sound from the vibration.
The electromagnet causes movement back and forth as the electric current changes by using cone vibrations as sound wave.
What is electromagnet?
An electromagnet is a magnet in which electric current produces the magnetic field.
The direction of the magnetic field around the coil reverses. The force on the cone let it change the direction. Repeatedly, the current direction makes the cone vibrate in and out. The cone vibrations causes pressure variations in the form of sound waves.
Hence, the electromagnet causes movement back and forth as the electric current changes by using cone vibrations as sound wave.
Learn more about electromagnet.
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