1A coil of wire that drives the cone of a loudspeaker according to the signal current flowing in it.
- ‘Better known as the voice coil that drives loudspeakers, a Lorentz coil is made up of a permanent magnet and coil winding, and produces a force proportional to the current applied to the coil.’
- ‘The ‘spider’ a bellows-like ring that suspends the cone over the voice coil, is made from a cotton/polyester webbing treated with polymer resin.’
- 1.1 A coil of wire in a moving-coil microphone, the movement of which generates an electrical signal.
We take a look at several popular, though confusing, punctuation marks.