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Which explanation best links the observation to the physics? Context: step-down charger transformer AC-output. Learning objective: (Physics only) (HT only) Describe how a potential difference is induced across a conductor when the conductor moves relative to a magnetic field.. Which answer is most accurate for Induced potential (HT only)? Distinct revision anchor: fluxcue522a coilcue522b fieldcue522c polecue522d gridcue522e motorcue522f generatorcue522g transformercue522h compasscue522i currentcue522j voltagecue522k forcecue522l.

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MCQ

Type

practice

Style

Topic

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

Exam-style question

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Which explanation best links the observation to the physics? Context: step-down charger transformer AC-output. Learning objective: (Physics only) (HT only) Describe how a potential difference is induced across a conductor when the conductor moves relative to a magnetic field.. Which answer is most accurate for Induced potential (HT only)? Distinct revision anchor: fluxcue522a coilcue522b fieldcue522c polecue522d gridcue522e motorcue522f generatorcue522g transformercue522h compasscue522i currentcue522j voltagecue522k forcecue522l.

  1. A.Induced potential (HT only): step-down charger transformer AC-output shows (Physics only) (HT only) Describe how a potential difference is induced across a conductor when the conductor moves relative to a magnetic field. because magnetic effects depend on field direction, current or changing magnetic flux.
  2. B.It reverses the role of primary and secondary coils. (turns-ratio error).
  3. C.It assumes transformers work on direct current without changing flux. (AC-output error).
  4. D.It states the turns ratio changes resistance rather than voltage. (coil-core error).

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