Which option gives the strongest diagnostic reason? Context: primary-secondary coil comparison safety. Learning objective: Draw the magnetic field pattern for a straight wire carrying a current.. Which answer is most accurate for Electromagnetism? Distinct revision anchor: fluxcue339a coilcue339b fieldcue339c polecue339d gridcue339e motorcue339f generatorcue339g transformercue339h compasscue339i currentcue339j voltagecue339k forcecue339l.

Electromagnetism: primary-secondary coil comparison safety shows Draw the magnetic field pattern for a straight wire carrying a current. because magnetic effects depend on field direction, current or changing magnetic flux.

Electromagnetism: primary-secondary coil comparison safety shows Draw the magnetic field pattern for a straight wire carrying a current. 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 primary-secondary coil comparison safety detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue339a coilcue339b fieldcue339c polecue339d gridcue339e motorcue339f generatorcue339g transformercue339h compasscue339i currentcue339j voltagecue339k forcecue339l: 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.