Learning objective

Explain how the magnetic effect of an electric current is utilized in devices like relays and loudspeakers, providing examples of their uses.

Read the explanation, check the common trap, then practise with flashcards and questions.

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Exam focus

Read the explanation.
Check key terms.
Practise with linked questions.

Cambridge IGCSE PhysicsElectricity and magnetismCore content

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Quick explanation

Explain how the magnetic effect of an electric current is utilized in devices like relays and loudspeakers, providing examples of their uses

This point belongs to Magnetic effect of a current, especially Magnetic effect of a current outcomes.
You need to be able to explain how the magnetic effect of an electric current is utilized in devices like relays and loudspeakers, providing examples of their uses.
The key ideas to know are Describe and Explain.
Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

DescribeExplain

Why it matters

This objective helps connect Magnetic effect of a current outcomes to exam-style questions, flashcards, and revision notes for Magnetic effect of a current.

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