Which response uses the correct technical wording for this situation? Context: alternator output trace diagnosis. Learning objective: Explain how the behaviour of a magnetic compass is evidence that the core of the Earth must be magnetic.. Which answer is most accurate for Magnetic fields? Distinct revision anchor: fluxcue266a coilcue266b fieldcue266c polecue266d gridcue266e motorcue266f generatorcue266g transformercue266h compasscue266i currentcue266j voltagecue266k forcecue266l.

Magnetic fields: alternator output trace diagnosis shows Explain how the behaviour of a magnetic compass is evidence that the core of the Earth must be magnetic. because magnetic effects depend on field direction, current or changing magnetic flux.

Magnetic fields: alternator output trace diagnosis shows Explain how the behaviour of a magnetic compass is evidence that the core of the Earth must be magnetic. because magnetic effects depend on field direction, current or changing magnetic flux. It is correct because it anchors the response to Magnetic fields, uses the relevant magnetic field, coil, current or induction evidence, and avoids mixing motor, generator and transformer ideas. The alternator output trace diagnosis detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue266a coilcue266b fieldcue266c polecue266d gridcue266e motorcue266f generatorcue266g transformercue266h compasscue266i currentcue266j voltagecue266k forcecue266l: 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.