Which option gives the strongest diagnostic reason? Context: primary-secondary coil comparison direction. Learning objective: (Physics only) (HT only) Recognise that knowledge of laminations and eddy currents in the core is not required.. Which answer is most accurate for Transformers (HT only)? Distinct revision anchor: fluxcue699a coilcue699b fieldcue699c polecue699d gridcue699e motorcue699f generatorcue699g transformercue699h compasscue699i currentcue699j voltagecue699k forcecue699l.

Transformers (HT only): primary-secondary coil comparison direction shows (Physics only) (HT only) Recognise that knowledge of laminations and eddy currents in the core is not required. because magnetic effects depend on field direction, current or changing magnetic flux.

Transformers (HT only): primary-secondary coil comparison direction shows (Physics only) (HT only) Recognise that knowledge of laminations and eddy currents in the core is not required. 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 primary-secondary coil comparison direction detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue699a coilcue699b fieldcue699c polecue699d gridcue699e motorcue699f generatorcue699g transformercue699h compasscue699i currentcue699j voltagecue699k forcecue699l: 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.