Which explanation best links the observation to the physics? Context: scrapyard lifting magnet turns-ratio. Learning objective: (Physics only) (HT only) State that loudspeakers and headphones use the motor effect.. Which answer is most accurate for Loudspeakers (physics only) (HT only)? Distinct revision anchor: fluxcue486a coilcue486b fieldcue486c polecue486d gridcue486e motorcue486f generatorcue486g transformercue486h compasscue486i currentcue486j voltagecue486k forcecue486l.

Loudspeakers (physics only) (HT only): scrapyard lifting magnet turns-ratio shows (Physics only) (HT only) State that loudspeakers and headphones use the motor effect. because magnetic effects depend on field direction, current or changing magnetic flux.

Loudspeakers (physics only) (HT only): scrapyard lifting magnet turns-ratio shows (Physics only) (HT only) State that loudspeakers and headphones use the motor effect. 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 scrapyard lifting magnet turns-ratio detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue486a coilcue486b fieldcue486c polecue486d gridcue486e motorcue486f generatorcue486g transformercue486h compasscue486i currentcue486j voltagecue486k forcecue486l: 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.