Which option gives the strongest diagnostic reason? Context: loudspeaker cone test current-change. Learning objective: (HT only) Identify force F in newtons, magnetic flux density B in tesla, current I in amperes and length l in metres.. Which answer is most accurate for Fleming's left-hand rule (HT only)? Distinct revision anchor: fluxcue423a coilcue423b fieldcue423c polecue423d gridcue423e motorcue423f generatorcue423g transformercue423h compasscue423i currentcue423j voltagecue423k forcecue423l.

Fleming's left-hand rule (HT only): loudspeaker cone test current-change shows (HT only) Identify force F in newtons, magnetic flux density B in tesla, current I in amperes and length l in metres. because magnetic effects depend on field direction, current or changing magnetic flux.

Fleming's left-hand rule (HT only): loudspeaker cone test current-change shows (HT only) Identify force F in newtons, magnetic flux density B in tesla, current I in amperes and length l in metres. 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 loudspeaker cone test current-change detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue423a coilcue423b fieldcue423c polecue423d gridcue423e motorcue423f generatorcue423g transformercue423h compasscue423i currentcue423j voltagecue423k forcecue423l: 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.