Which explanation best links the observation to the physics? Context: National Grid substation cause. Learning objective: Describe attraction and repulsion between magnetic poles as non-contact forces.. Which answer is most accurate for Poles of a magnet? Distinct revision anchor: fluxcue132a coilcue132b fieldcue132c polecue132d gridcue132e motorcue132f generatorcue132g transformercue132h compasscue132i currentcue132j voltagecue132k forcecue132l.

Poles of a magnet: National Grid substation cause shows Describe attraction and repulsion between magnetic poles as non-contact forces. because magnetic effects depend on field direction, current or changing magnetic flux.

Poles of a magnet: National Grid substation cause shows Describe attraction and repulsion between magnetic poles as non-contact forces. because magnetic effects depend on field direction, current or changing magnetic flux. It is correct because it anchors the response to Poles of a magnet, uses the relevant magnetic field, coil, current or induction evidence, and avoids mixing motor, generator and transformer ideas. The National Grid substation cause detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue132a coilcue132b fieldcue132c polecue132d gridcue132e motorcue132f generatorcue132g transformercue132h compasscue132i currentcue132j voltagecue132k forcecue132l: 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.