Exam-style question
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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.
- A.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.
- B.It says field lines travel from south to north outside the magnet. (power-link error).
- C.It makes AC and DC equivalent. (exam-command error).
- D.It ignores relative motion or changing magnetic flux. (direction error).
Answer and explanation
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Common mistake
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