Question detail
Which response uses the correct technical wording for this situation? Context: alternator output trace efficiency. Learning objective: Apply WS 2.2 when drawing magnetic field patterns for a current-carrying wire and solenoid.. Which answer is most accurate for Electromagnetism? Distinct revision anchor: fluxcue362a coilcue362b fieldcue362c polecue362d gridcue362e motorcue362f generatorcue362g transformercue362h compasscue362i currentcue362j voltagecue362k forcecue362l.
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: alternator output trace efficiency shows Apply WS 2.2 when drawing magnetic field patterns for a current-carrying wire and solenoid. because magnetic effects depend on field direction, current or changing magnetic flux.
- B. It reverses the role of primary and secondary coils. (direction error).
- C. It assumes transformers work on direct current without changing flux. (cause error).
- D. It states the turns ratio changes resistance rather than voltage. (evidence error).
Answer
Electromagnetism: alternator output trace efficiency shows Apply WS 2.2 when drawing magnetic field patterns for a current-carrying wire and solenoid. because magnetic effects depend on field direction, current or changing magnetic flux.
Explanation
Electromagnetism: alternator output trace efficiency shows Apply WS 2.2 when drawing magnetic field patterns for a current-carrying wire and solenoid. 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 alternator output trace efficiency detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue362a coilcue362b fieldcue362c polecue362d gridcue362e motorcue362f generatorcue362g transformercue362h compasscue362i currentcue362j voltagecue362k forcecue362l: 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 a steel core electromagnet demonstration and the objective to apply WS 2.2 when drawing magnetic field patterns for a current-carrying wire and solenoid.
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