Which option gives the strongest diagnostic reason? Context: primary-secondary coil comparison power-link. Learning objective: (Physics only) (HT only) State that microphones use the generator effect.. Which answer is most accurate for Microphones (HT only)? Distinct revision anchor: fluxcue651a coilcue651b fieldcue651c polecue651d gridcue651e motorcue651f generatorcue651g transformercue651h compasscue651i currentcue651j voltagecue651k forcecue651l.

Microphones (HT only): primary-secondary coil comparison power-link shows (Physics only) (HT only) State that microphones use the generator effect. because magnetic effects depend on field direction, current or changing magnetic flux.

Microphones (HT only): primary-secondary coil comparison power-link shows (Physics only) (HT only) State that microphones use the generator effect. 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 primary-secondary coil comparison power-link detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue651a coilcue651b fieldcue651c polecue651d gridcue651e motorcue651f generatorcue651g transformercue651h compasscue651i currentcue651j voltagecue651k forcecue651l: 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.