How electric guitar pickups work
How does an electric guitar turn movement (in a string) into that amazing twangy sound you can hear? Like this!
- Bar magnet (gray) in pickup generates magnetic field all around it.
- Magnetic field (gray curved lines) extends invisibly upward through metal guitar strings above the pickup. (It also extends downward through the guitar, but that's not relevant here.)
- Guitar string (brown) changes the magnetic field when it vibrates from side to side.
- Coil of thin wire (yellow) wrapped around pickup "feels" changing magnetic field and generates tiny electric current.
- Amplifier boosts electric current enough to drive loudspeaker.
- Loudspeaker turns electric current into sound.
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