the vibrating steel strings produce a corresponding vibration in the magnet's magnetic field and therefore a vibrating current in the coil.

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LENZs law repeat it! ? the current induced in
the loop opposes the change in flux (fieldarea)
the vibrating steel strings produce a
corresponding vibration in the magnet's magnetic
field and therefore a vibrating current in the
coil. There is a current through the strings,
which causes a field. The field moves when you
pluck a string. The change in the field is a
change in flux in the wire coil. The change in
flux is opposed by an induced current. This
signal is translated into sound.
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