Which response uses the correct technical wording for this situation? Context: model railway motor safety. Learning objective: State that adding an iron core increases the strength of the magnetic field of a solenoid.. Which answer is most accurate for Electromagnetism? Distinct revision anchor: fluxcue320a coilcue320b fieldcue320c polecue320d gridcue320e motorcue320f generatorcue320g transformercue320h compasscue320i currentcue320j voltagecue320k forcecue320l.

Electromagnetism: model railway motor safety shows State that adding an iron core increases the strength of the magnetic field of a solenoid. because magnetic effects depend on field direction, current or changing magnetic flux.

Electromagnetism: model railway motor safety shows State that adding an iron core increases the strength of the magnetic field of a solenoid. because magnetic effects depend on field direction, current or changing magnetic flux. It is correct because it anchors the response to Electromagnetism, uses the relevant magnetic field, coil, current or induction evidence, and avoids mixing motor, generator and transformer ideas. The model railway motor safety detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue320a coilcue320b fieldcue320c polecue320d gridcue320e motorcue320f generatorcue320g transformercue320h compasscue320i currentcue320j voltagecue320k forcecue320l: 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.