Which explanation best links the observation to the physics? Context: laboratory bar magnet exam-command. Learning objective: (Physics only) (HT only) Link movement of a coil in a magnetic field to induced potential difference in a microphone.. Which answer is most accurate for Microphones (HT only)? Distinct revision anchor: fluxcue672a coilcue672b fieldcue672c polecue672d gridcue672e motorcue672f generatorcue672g transformercue672h compasscue672i currentcue672j voltagecue672k forcecue672l.

Microphones (HT only): laboratory bar magnet exam-command shows (Physics only) (HT only) Link movement of a coil in a magnetic field to induced potential difference in a microphone. because magnetic effects depend on field direction, current or changing magnetic flux.

Microphones (HT only): laboratory bar magnet exam-command shows (Physics only) (HT only) Link movement of a coil in a magnetic field to induced potential difference in a microphone. because magnetic effects depend on field direction, current or changing magnetic flux. It is correct because it anchors the response to Microphones (HT only), uses the relevant magnetic field, coil, current or induction evidence, and avoids mixing motor, generator and transformer ideas. The laboratory bar magnet exam-command detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue672a coilcue672b fieldcue672c polecue672d gridcue672e motorcue672f generatorcue672g transformercue672h compasscue672i currentcue672j voltagecue672k forcecue672l: 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.