Question detail

Which answer avoids the common misconception in this topic? Context: wind-turbine generator coil-core. Learning objective: (Physics only) (HT only) Describe induced potential difference and induced current as the generator effect.. Which answer is most accurate for Induced potential (HT only)? Distinct revision anchor: fluxcue544a coilcue544b fieldcue544c polecue544d gridcue544e motorcue544f generatorcue544g transformercue544h compasscue544i currentcue544j voltagecue544k forcecue544l.

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

  1. A. Induced potential (HT only): wind-turbine generator coil-core shows (Physics only) (HT only) Describe induced potential difference and induced current as the generator effect. because magnetic effects depend on field direction, current or changing magnetic flux.
  2. B. It says field lines travel from south to north outside the magnet. (voltage-change error).
  3. C. It makes AC and DC equivalent. (force-link error).
  4. D. It ignores relative motion or changing magnetic flux. (turns-ratio error).

Answer

Induced potential (HT only): wind-turbine generator coil-core shows (Physics only) (HT only) Describe induced potential difference and induced current as the generator effect. because magnetic effects depend on field direction, current or changing magnetic flux.

Explanation

Induced potential (HT only): wind-turbine generator coil-core shows (Physics only) (HT only) Describe induced potential difference and induced current as the generator effect. because magnetic effects depend on field direction, current or changing magnetic flux. It is correct because it anchors the response to Induced potential (HT only), uses the relevant magnetic field, coil, current or induction evidence, and avoids mixing motor, generator and transformer ideas. The wind-turbine generator coil-core detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue544a coilcue544b fieldcue544c polecue544d gridcue544e motorcue544f generatorcue544g transformercue544h compasscue544i currentcue544j voltagecue544k forcecue544l: 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 Induced potential (HT only), then explain how it links to a loudspeaker coil moving in a magnetic field and the objective to describe induced potential difference and induced current as the generator effect.

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application MCQ 3: current as the generator effect. | Induced… | ExamCompanion