Which explanation best links the observation to the physics? Context: laboratory bar magnet energy-transfer. Learning objective: (HT only) Describe the motor effect as the force on a current-carrying conductor placed in a magnetic field.. Which answer is most accurate for Fleming's left-hand rule (HT only)? Distinct revision anchor: fluxcue384a coilcue384b fieldcue384c polecue384d gridcue384e motorcue384f generatorcue384g transformercue384h compasscue384i currentcue384j voltagecue384k forcecue384l.

Fleming's left-hand rule (HT only): laboratory bar magnet energy-transfer shows (HT only) Describe the motor effect as the force on a current-carrying conductor placed in a magnetic field. because magnetic effects depend on field direction, current or changing magnetic flux.

Fleming's left-hand rule (HT only): laboratory bar magnet energy-transfer shows (HT only) Describe the motor effect as the force on a current-carrying conductor placed in a magnetic field. 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 energy-transfer detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue384a coilcue384b fieldcue384c polecue384d gridcue384e motorcue384f generatorcue384g transformercue384h compasscue384i currentcue384j voltagecue384k forcecue384l: 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.