Which explanation best links the observation to the physics? Context: laboratory bar magnet safety. Learning objective: Describe how the magnetic effect of a current can be demonstrated.. Which answer is most accurate for Electromagnetism? Distinct revision anchor: fluxcue336a coilcue336b fieldcue336c polecue336d gridcue336e motorcue336f generatorcue336g transformercue336h compasscue336i currentcue336j voltagecue336k forcecue336l.

Electromagnetism: laboratory bar magnet safety shows Describe how the magnetic effect of a current can be demonstrated. because magnetic effects depend on field direction, current or changing magnetic flux.

Electromagnetism: laboratory bar magnet safety shows Describe how the magnetic effect of a current can be demonstrated. because magnetic effects depend on field direction, current or changing magnetic flux. It is correct because it anchors the response to Electromagnetism, uses the relevant magnetic field, coil, current or induction evidence, and avoids mixing motor, generator and transformer ideas. The laboratory bar magnet safety detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue336a coilcue336b fieldcue336c polecue336d gridcue336e motorcue336f generatorcue336g transformercue336h compasscue336i currentcue336j voltagecue336k forcecue336l: 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.