WAyrton–Perry winding
WBalun
WBasket winding
WBifilar coil
WChoke (electronics)
WCoil winding technology
WDeflection yoke
WElectrum (sculpture)
WHelmholtz coil
WIgnition coil
WJumble winding
WLoading coil
WLow tension coil
WMagnetic lens
WMaxwell coil
WOudin coil
WRogowski coil
WSinging Tesla coil
WSingle coil guitar pickup
WSolenoid
WVoice coil
WWig wag (washing machines)