logo

Question detail

Which explanation best links the observation to the physics? Context: laboratory bar magnet direction. Learning objective: (Physics only) (HT only) Recognise that knowledge of laminations and eddy currents in the core is not required.. Which answer is most accurate for Transformers (HT only)? Distinct revision anchor: fluxcue696a coilcue696b fieldcue696c polecue696d gridcue696e motorcue696f generatorcue696g transformercue696h compasscue696i currentcue696j voltagecue696k forcecue696l.

Try the question, check the answer, then read the explanation to understand the curriculum point.

At a glance

MCQ

Type

practice

Style

Topic

Induced potential, transformers and the National Grid (physics only) (HT only)

Exam-style question

Try this first

Which explanation best links the observation to the physics? Context: laboratory bar magnet direction. Learning objective: (Physics only) (HT only) Recognise that knowledge of laminations and eddy currents in the core is not required.. Which answer is most accurate for Transformers (HT only)? Distinct revision anchor: fluxcue696a coilcue696b fieldcue696c polecue696d gridcue696e motorcue696f generatorcue696g transformercue696h compasscue696i currentcue696j voltagecue696k forcecue696l.

  1. A.Transformers (HT only): laboratory bar magnet direction shows (Physics only) (HT only) Recognise that knowledge of laminations and eddy currents in the core is not required. because magnetic effects depend on field direction, current or changing magnetic flux.
  2. B.It says field lines travel from south to north outside the magnet. (power-link error).
  3. C.It makes AC and DC equivalent. (exam-command error).
  4. D.It ignores relative motion or changing magnetic flux. (direction error).

Answer and explanation

Attempt the question first, then reveal the model answer and explanation.

Common mistake

No common mistake is linked to this question yet.

Related flashcards

No flashcards are published for this page yet.

Related practice questions

No questions are published for this page yet.