Learning objective
Explain inverse-square behaviour for point charges.
Read the explanation, check the common trap, then practise with flashcards and questions.
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Topic
Electric fields
Subtopic
Coulomb's law
Aqa A Level PhysicsFields and their consequences
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Quick explanation
Explain inverse-square behaviour for point charges
- This point belongs to Electric fields, especially Coulomb's law.
- You need to be able to explain inverse-square behaviour for point charges.
- The key ideas to know are point charge.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Key concepts
point charge
Why it matters
This objective helps connect Coulomb's law to exam-style questions, flashcards, and revision notes for Electric fields.
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Revision notestopic notes
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Open revision notesRelated learning objectives
- State and apply Coulomb's law.
Coulomb's law
- Determine force direction for like and unlike charges.
Coulomb's law
- Compare Coulomb's law with Newton's law of gravitation.
Coulomb's law
- Define electric field strength as force per unit positive charge.
Electric field strength
- Calculate electric field strength due to point charges.
Electric field strength