Select the statement that would earn credit in an AQA GCSE Physics answer. Context: power-station transformer comparison. Learning objective: Describe how shaping a wire to form a solenoid increases the strength of the magnetic field created by a current.. Which answer is most accurate for Electromagnetism? Distinct revision anchor: fluxcue299a coilcue299b fieldcue299c polecue299d gridcue299e motorcue299f generatorcue299g transformercue299h compasscue299i currentcue299j voltagecue299k forcecue299l.

Electromagnetism: power-station transformer comparison shows Describe how shaping a wire to form a solenoid increases the strength of the magnetic field created by a current. because magnetic effects depend on field direction, current or changing magnetic flux.

Electromagnetism: power-station transformer comparison shows Describe how shaping a wire to form a solenoid increases the strength of the magnetic field created by a current. 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 power-station transformer comparison detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue299a coilcue299b fieldcue299c polecue299d gridcue299e motorcue299f generatorcue299g transformercue299h compasscue299i currentcue299j voltagecue299k forcecue299l: 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.