Which explanation best links the observation to the physics? Context: laboratory bar magnet current-change. Learning objective: (HT only) Rearrange F = B x I x l to calculate magnetic flux density, current or length where appropriate.. Which answer is most accurate for Fleming's left-hand rule (HT only)? Distinct revision anchor: fluxcue432a coilcue432b fieldcue432c polecue432d gridcue432e motorcue432f generatorcue432g transformercue432h compasscue432i currentcue432j voltagecue432k forcecue432l.

Fleming's left-hand rule (HT only): laboratory bar magnet current-change shows (HT only) Rearrange F = B x I x l to calculate magnetic flux density, current or length where appropriate. because magnetic effects depend on field direction, current or changing magnetic flux.

Fleming's left-hand rule (HT only): laboratory bar magnet current-change shows (HT only) Rearrange F = B x I x l to calculate magnetic flux density, current or length where appropriate. because magnetic effects depend on field direction, current or changing magnetic flux. It is correct because it anchors the response to Fleming's left-hand rule (HT only), uses the relevant magnetic field, coil, current or induction evidence, and avoids mixing motor, generator and transformer ideas. The laboratory bar magnet current-change detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue432a coilcue432b fieldcue432c polecue432d gridcue432e motorcue432f generatorcue432g transformercue432h compasscue432i currentcue432j voltagecue432k forcecue432l: 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.