Question detail
Which response uses the correct technical wording for this situation? Context: split-ring motor kit force-link. Learning objective: (HT only) Link opposite forces on the sides of a current-carrying coil to the turning effect in an electric motor.. Which answer is most accurate for Electric motors (HT only)? Distinct revision anchor: fluxcue476a coilcue476b fieldcue476c polecue476d gridcue476e motorcue476f generatorcue476g transformercue476h compasscue476i currentcue476j voltagecue476k forcecue476l.
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. Electric motors (HT only): split-ring motor kit force-link shows (HT only) Link opposite forces on the sides of a current-carrying coil to the turning effect in an electric motor. 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
Electric motors (HT only): split-ring motor kit force-link shows (HT only) Link opposite forces on the sides of a current-carrying coil to the turning effect in an electric motor. because magnetic effects depend on field direction, current or changing magnetic flux.
Explanation
Electric motors (HT only): split-ring motor kit force-link shows (HT only) Link opposite forces on the sides of a current-carrying coil to the turning effect in an electric motor. because magnetic effects depend on field direction, current or changing magnetic flux. It is correct because it anchors the response to Electric motors (HT only), uses the relevant magnetic field, coil, current or induction evidence, and avoids mixing motor, generator and transformer ideas. The split-ring motor kit force-link detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue476a coilcue476b fieldcue476c polecue476d gridcue476e motorcue476f generatorcue476g transformercue476h compasscue476i currentcue476j voltagecue476k forcecue476l: 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 Electric motors (HT only), then explain how it links to a moving-coil microphone investigation and the objective to link opposite forces on the sides of a current-carrying coil to the turning effect in an electric motor.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.
