Which option gives the strongest diagnostic reason? Context: phone speaker coil boundary. Learning objective: (Physics only) (HT only) Describe a step-down transformer as having secondary potential difference less than primary potential difference.. Which answer is most accurate for Transformers (HT only)? Distinct revision anchor: fluxcue753a coilcue753b fieldcue753c polecue753d gridcue753e motorcue753f generatorcue753g transformercue753h compasscue753i currentcue753j voltagecue753k forcecue753l.

Transformers (HT only): phone speaker coil boundary shows (Physics only) (HT only) Describe a step-down transformer as having secondary potential difference less than primary potential difference. because magnetic effects depend on field direction, current or changing magnetic flux.

Transformers (HT only): phone speaker coil boundary shows (Physics only) (HT only) Describe a step-down transformer as having secondary potential difference less than primary potential difference. because magnetic effects depend on field direction, current or changing magnetic flux. It is correct because it anchors the response to Transformers (HT only), uses the relevant magnetic field, coil, current or induction evidence, and avoids mixing motor, generator and transformer ideas. The phone speaker coil boundary detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue753a coilcue753b fieldcue753c polecue753d gridcue753e motorcue753f generatorcue753g transformercue753h compasscue753i currentcue753j voltagecue753k forcecue753l: 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.