Question detail
Which answer avoids the common misconception in this topic? Context: wind-turbine generator power-link. Learning objective: (Physics only) (HT only) Apply WS 1.4 when interpreting diagrams and graphs of generator-effect devices.. Which answer is most accurate for Uses of the generator effect (HT only)? Distinct revision anchor: fluxcue640a coilcue640b fieldcue640c polecue640d gridcue640e motorcue640f generatorcue640g transformercue640h compasscue640i currentcue640j voltagecue640k forcecue640l.
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. Uses of the generator effect (HT only): wind-turbine generator power-link shows (Physics only) (HT only) Apply WS 1.4 when interpreting diagrams and graphs of generator-effect devices. 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. (voltage-change error).
- C. It makes AC and DC equivalent. (force-link error).
- D. It ignores relative motion or changing magnetic flux. (turns-ratio error).
Answer
Uses of the generator effect (HT only): wind-turbine generator power-link shows (Physics only) (HT only) Apply WS 1.4 when interpreting diagrams and graphs of generator-effect devices. because magnetic effects depend on field direction, current or changing magnetic flux.
Explanation
Uses of the generator effect (HT only): wind-turbine generator power-link shows (Physics only) (HT only) Apply WS 1.4 when interpreting diagrams and graphs of generator-effect devices. because magnetic effects depend on field direction, current or changing magnetic flux. It is correct because it anchors the response to Uses of the generator effect (HT only), uses the relevant magnetic field, coil, current or induction evidence, and avoids mixing motor, generator and transformer ideas. The wind-turbine generator power-link detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue640a coilcue640b fieldcue640c polecue640d gridcue640e motorcue640f generatorcue640g transformercue640h compasscue640i currentcue640j voltagecue640k forcecue640l: 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 motors and generators
Treating motors and generators as interchangeable when answering about National Grid transformer reasoning.
Instead, identify the exact Unit 4.7 idea in Uses of the generator effect (HT only), then explain how it links to a moving-coil microphone investigation and the objective to apply WS 1.4 when interpreting diagrams and graphs of generator-effect devices.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.
