Question detail
Which response uses the correct technical wording for this situation? Context: split-ring motor kit cause. Learning objective: State that a permanent magnet produces its own magnetic field.. Which answer is most accurate for Poles of a magnet? Distinct revision anchor: fluxcue140a coilcue140b fieldcue140c polecue140d gridcue140e motorcue140f generatorcue140g transformercue140h compasscue140i currentcue140j voltagecue140k forcecue140l.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Permanent and induced magnetism, magnetic forces and fields
Question
- A. Poles of a magnet: split-ring motor kit cause shows State that a permanent magnet produces its own magnetic field. 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. (coil-core error).
- C. It makes AC and DC equivalent. (compass-response error).
- D. It ignores relative motion or changing magnetic flux. (pole-test error).
Answer
Poles of a magnet: split-ring motor kit cause shows State that a permanent magnet produces its own magnetic field. because magnetic effects depend on field direction, current or changing magnetic flux.
Explanation
Poles of a magnet: split-ring motor kit cause shows State that a permanent magnet produces its own magnetic field. because magnetic effects depend on field direction, current or changing magnetic flux. It is correct because it anchors the response to Poles of a magnet, uses the relevant magnetic field, coil, current or induction evidence, and avoids mixing motor, generator and transformer ideas. The split-ring motor kit cause detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue140a coilcue140b fieldcue140c polecue140d gridcue140e motorcue140f generatorcue140g transformercue140h compasscue140i currentcue140j voltagecue140k forcecue140l: 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
generator-effect induction: avoid permanent and induced magnets
Treating permanent and induced magnets as interchangeable when answering about generator-effect induction.
Instead, identify the exact Unit 4.7 idea in Poles of a magnet, then explain how it links to a dynamo producing a DC output trace and the objective to state that a permanent magnet produces its own magnetic field.
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