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Which conclusion keeps the magnetism concept boundary clear? Context: classroom plotting compass exam-command. Learning objective: (Physics only) (HT only) Explain how a moving-coil microphone works.. Which answer is most accurate for Microphones (HT only)? Distinct revision anchor: fluxcue661a coilcue661b fieldcue661c polecue661d gridcue661e motorcue661f generatorcue661g transformercue661h compasscue661i currentcue661j voltagecue661k forcecue661l.
- A.Microphones (HT only): classroom plotting compass exam-command shows (Physics only) (HT only) Explain how a moving-coil microphone works. because magnetic effects depend on field direction, current or changing magnetic flux.
- B.It treats a permanent magnet as if it only works when current flows. (energy-transfer error).
- C.It confuses the magnetic field with an electric field. (field-shape error).
- D.It describes energy transfer but misses the force or field interaction. (current-change error).
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