Which explanation best links the observation to the physics? Context: laboratory bar magnet force-link. Learning objective: (HT only) Use motor-effect reasoning to explain the operation of a simple electric motor.. Which answer is most accurate for Electric motors (HT only)? Distinct revision anchor: fluxcue480a coilcue480b fieldcue480c polecue480d gridcue480e motorcue480f generatorcue480g transformercue480h compasscue480i currentcue480j voltagecue480k forcecue480l.

Electric motors (HT only): laboratory bar magnet force-link shows (HT only) Use motor-effect reasoning to explain the operation of a simple electric motor. because magnetic effects depend on field direction, current or changing magnetic flux.

Electric motors (HT only): laboratory bar magnet force-link shows (HT only) Use motor-effect reasoning to explain the operation of a simple electric motor. because magnetic effects depend on field direction, current or changing magnetic flux. It is correct because it anchors the response to Electric motors (HT only), uses the relevant magnetic field, coil, current or induction evidence, and avoids mixing motor, generator and transformer ideas. The laboratory bar magnet force-link detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue480a coilcue480b fieldcue480c polecue480d gridcue480e motorcue480f generatorcue480g transformercue480h compasscue480i currentcue480j voltagecue480k forcecue480l: 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.