Which option gives the strongest diagnostic reason? Context: loudspeaker cone test turns-ratio. Learning objective: (Physics only) (HT only) Describe how variations in current in an electrical circuit are converted into pressure variations in sound waves.. Which answer is most accurate for Loudspeakers (physics only) (HT only)? Distinct revision anchor: fluxcue495a coilcue495b fieldcue495c polecue495d gridcue495e motorcue495f generatorcue495g transformercue495h compasscue495i currentcue495j voltagecue495k forcecue495l.

Loudspeakers (physics only) (HT only): loudspeaker cone test turns-ratio shows (Physics only) (HT only) Describe how variations in current in an electrical circuit are converted into pressure variations in sound waves. because magnetic effects depend on field direction, current or changing magnetic flux.

Loudspeakers (physics only) (HT only): loudspeaker cone test turns-ratio shows (Physics only) (HT only) Describe how variations in current in an electrical circuit are converted into pressure variations in sound waves. because magnetic effects depend on field direction, current or changing magnetic flux. It is correct because it anchors the response to Loudspeakers (physics only) (HT only), uses the relevant magnetic field, coil, current or induction evidence, and avoids mixing motor, generator and transformer ideas. The loudspeaker cone test turns-ratio detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue495a coilcue495b fieldcue495c polecue495d gridcue495e motorcue495f generatorcue495g transformercue495h compasscue495i currentcue495j voltagecue495k forcecue495l: in the motor effect, the force is perpendicular to the current and magnetic field; in a generator, relative motion or a changing magnetic field induces a potential difference or induced current; outside a magnet, magnetic field lines go from north to south; AC alternating current changes direction, while DC direct current flows in one direction and needs a commutator in a DC generator context.