Question detail
Which conclusion keeps the magnetism concept boundary clear? Context: classroom plotting compass compass-response. Learning objective: (Physics only) (HT only) Recall the factors that affect the size of the induced potential difference or induced current.. Which answer is most accurate for Induced potential (HT only)? Distinct revision anchor: fluxcue565a coilcue565b fieldcue565c polecue565d gridcue565e motorcue565f generatorcue565g transformercue565h compasscue565i currentcue565j voltagecue565k forcecue565l.
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)
Question
- A. Induced potential (HT only): classroom plotting compass compass-response shows (Physics only) (HT only) Recall the factors that affect the size of the induced potential difference or induced current. 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).
Answer
Induced potential (HT only): classroom plotting compass compass-response shows (Physics only) (HT only) Recall the factors that affect the size of the induced potential difference or induced current. because magnetic effects depend on field direction, current or changing magnetic flux.
Explanation
Induced potential (HT only): classroom plotting compass compass-response shows (Physics only) (HT only) Recall the factors that affect the size of the induced potential difference or induced current. because magnetic effects depend on field direction, current or changing magnetic flux. It is correct because it anchors the response to Induced potential (HT only), uses the relevant magnetic field, coil, current or induction evidence, and avoids mixing motor, generator and transformer ideas. The classroom plotting compass compass-response detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue565a coilcue565b fieldcue565c polecue565d gridcue565e motorcue565f generatorcue565g transformercue565h compasscue565i currentcue565j voltagecue565k forcecue565l: 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.
Common mistake
National Grid transformer reasoning: avoid AC and DC
Treating AC and DC as interchangeable when answering about National Grid transformer reasoning.
Instead, identify the exact Unit 4.7 idea in Induced potential (HT only), then explain how it links to a moving-coil microphone investigation and the objective to recall the factors that affect the size of the induced potential difference or induced current.
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