What loudspeaker is made of
Turns an electrical signal into sound: a coil in a magnetic field moves a diaphragm.
- Diaphragm — has part. The cone diaphragm vibrates and makes sound.
- Permanent magnet — has part. A permanent magnet.
- Electromagnetism — uses. A coil carrying current in the field of a permanent magnet moves the diaphragm.
- Sound wave — uses. It creates sound waves.
- Paper — is made of. The cone is paper.
- Copper — is made of. The coil is copper.