Select the statement that would earn credit in an AQA GCSE Physics answer. Context: step-up transformer demonstration boundary. Learning objective: Identify iron, steel, cobalt and nickel as magnetic materials named in the specification.. Which answer is most accurate for Magnetic fields? Distinct revision anchor: fluxcue185a coilcue185b fieldcue185c polecue185d gridcue185e motorcue185f generatorcue185g transformercue185h compasscue185i currentcue185j voltagecue185k forcecue185l.

Magnetic fields: step-up transformer demonstration boundary shows Identify iron, steel, cobalt and nickel as magnetic materials named in the specification. because magnetic effects depend on field direction, current or changing magnetic flux.

Magnetic fields: step-up transformer demonstration boundary shows Identify iron, steel, cobalt and nickel as magnetic materials named in the specification. 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 step-up transformer demonstration boundary detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue185a coilcue185b fieldcue185c polecue185d gridcue185e motorcue185f generatorcue185g transformercue185h compasscue185i currentcue185j voltagecue185k forcecue185l: 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.