Select the statement that would earn credit in an AQA GCSE Physics answer. Context: step-up transformer demonstration safety. Learning objective: Define an electromagnet as a solenoid with an iron core.. Which answer is most accurate for Electromagnetism? Distinct revision anchor: fluxcue329a coilcue329b fieldcue329c polecue329d gridcue329e motorcue329f generatorcue329g transformercue329h compasscue329i currentcue329j voltagecue329k forcecue329l.

Electromagnetism: step-up transformer demonstration safety shows Define an electromagnet as a solenoid with an iron core. because magnetic effects depend on field direction, current or changing magnetic flux.

Electromagnetism: step-up transformer demonstration safety shows Define an electromagnet as a solenoid with an iron core. 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 step-up transformer demonstration safety detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue329a coilcue329b fieldcue329c polecue329d gridcue329e motorcue329f generatorcue329g transformercue329h compasscue329i currentcue329j voltagecue329k forcecue329l: 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.