Question detail
Which response uses the correct technical wording for this situation? Context: split-ring motor kit comparison. Learning objective: State that the magnetic field inside a solenoid is strong and uniform.. Which answer is most accurate for Electromagnetism? Distinct revision anchor: fluxcue308a coilcue308b fieldcue308c polecue308d gridcue308e motorcue308f generatorcue308g transformercue308h compasscue308i currentcue308j voltagecue308k forcecue308l.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
The motor effect
Question
- A. Electromagnetism: split-ring motor kit comparison shows State that the magnetic field inside a solenoid is strong and uniform. 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
Electromagnetism: split-ring motor kit comparison shows State that the magnetic field inside a solenoid is strong and uniform. because magnetic effects depend on field direction, current or changing magnetic flux.
Explanation
Electromagnetism: split-ring motor kit comparison shows State that the magnetic field inside a solenoid is strong and uniform. because magnetic effects depend on field direction, current or changing magnetic flux. It is correct because it anchors the response to Electromagnetism, uses the relevant magnetic field, coil, current or induction evidence, and avoids mixing motor, generator and transformer ideas. The split-ring motor kit comparison detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue308a coilcue308b fieldcue308c polecue308d gridcue308e motorcue308f generatorcue308g transformercue308h compasscue308i currentcue308j voltagecue308k forcecue308l: 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
motor-effect force direction: avoid motors and generators
Treating motors and generators as interchangeable when answering about motor-effect force direction.
Instead, identify the exact Unit 4.7 idea in Electromagnetism, then explain how it links to an alternator producing an AC output trace and the objective to state that the magnetic field inside a solenoid is strong and uniform.
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