Learning objective
Describe how the strength of the magnetic field around a wire depends on current through the wire.
Read the explanation, check the common trap, then practise with flashcards and questions.
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Topic
The motor effect
Subtopic
Electromagnetism
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Quick explanation
Describe how the strength of the magnetic field around a wire depends on current through the wire
- This point belongs to The motor effect, especially Electromagnetism.
- You need to be able to describe how the strength of the magnetic field around a wire depends on current through the wire.
- The key ideas to know are magnetic field and current.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Key concepts
Why it matters
This objective helps connect Electromagnetism to exam-style questions, flashcards, and revision notes for The motor effect.
Quick student answer
How does the strength of the magnetic field around a wire depends on current through the wire work?
Direct answer
In Physics, this page helps you answer questions about the strength of the magnetic field around a wire depends on current through the wire within The motor effect. Focus on the key process, correct scientific terms, and how the idea links to exam-style questions. Key terms to check are Electromagnetism application cue 53 and Electromagnetism measurement cue 54.
Key terms
- Electromagnetism application cue 53: A phone speaker coil evidence cue for Describe how the strength of the magnetic field around a wire depends on current through the wire.. It helps identify the relevant magnetic field, current, transformer coil, motor effect or generator induction evidence, while keeping Electromagnetism distinct from neighbouring GCSE Physics ideas. Distinct retrieval anchor: fluxcue153a coilcue153b fieldcue153c polecue153d gridcue153e motorcue153f generatorcue153g transformercue153h compasscue153i currentcue153j voltagecue153k forcecue153l.
- Electromagnetism measurement cue 54: A bicycle dynamo evidence cue for Describe how the strength of the magnetic field around a wire depends on current through the wire.. It helps identify the relevant magnetic field, current, transformer coil, motor effect or generator induction evidence, while keeping Electromagnetism distinct from neighbouring GCSE Physics ideas. Distinct retrieval anchor: fluxcue154a coilcue154b fieldcue154c polecue154d gridcue154e motorcue154f generatorcue154g transformercue154h compasscue154i currentcue154j voltagecue154k forcecue154l.
Common trap
motor-effect force direction: avoid motors and generators: 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 describe how the strength of the magnetic field around a wire depends on current through the wire.
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Revision notestopic notes
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Open revision notesRelated learning objectives
- State that when a current flows through a conducting wire a magnetic field is produced around the wire.
Electromagnetism
- Describe how the strength of the magnetic field around a wire depends on distance from the wire.
Electromagnetism
- Describe how shaping a wire to form a solenoid increases the strength of the magnetic field created by a current.
Electromagnetism
- State that the magnetic field inside a solenoid is strong and uniform.
Electromagnetism
- Describe the magnetic field around a solenoid as having a similar shape to that of a bar magnet.
Electromagnetism