Question detail
Which conclusion keeps the magnetism concept boundary clear? Context: classroom plotting compass efficiency. Learning objective: Draw the magnetic field pattern for a solenoid, showing the direction of the field.. Which answer is most accurate for Electromagnetism? Distinct revision anchor: fluxcue349a coilcue349b fieldcue349c polecue349d gridcue349e motorcue349f generatorcue349g transformercue349h compasscue349i currentcue349j voltagecue349k forcecue349l.
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: classroom plotting compass efficiency shows Draw the magnetic field pattern for a solenoid, showing the direction of the field. 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
Electromagnetism: classroom plotting compass efficiency shows Draw the magnetic field pattern for a solenoid, showing the direction of the field. because magnetic effects depend on field direction, current or changing magnetic flux.
Explanation
Electromagnetism: classroom plotting compass efficiency shows Draw the magnetic field pattern for a solenoid, showing the direction of the field. 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 classroom plotting compass efficiency detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue349a coilcue349b fieldcue349c polecue349d gridcue349e motorcue349f generatorcue349g transformercue349h compasscue349i currentcue349j voltagecue349k forcecue349l: 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 calculation using primary and secondary coils and the objective to draw the magnetic field pattern for a solenoid, showing the direction of the field.
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