Learning objective

Recognize that a fuse without an earth wire provides protection for the circuit and wiring of a double-insulated appliance.

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

Exam focus

Cambridge IGCSE PhysicsElectricity and magnetismCore content

Study support

Understand this objective

Quick explanation

This point belongs to Electrical safety, especially Electrical safety outcomes.
You need to be able to recognize that a fuse without an earth wire provides protection for the circuit and wiring of a double-insulated appliance.
The key ideas to know are State.
Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

State

Why it matters

This objective helps connect Electrical safety outcomes to exam-style questions, flashcards, and revision notes for Electrical safety.

Revision tools

Flashcards10 linked cards

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Practice Questions7 linked questions

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Paper 3Theory (Core)1 marks

Description

Double-insulated appliances are designed without an earth wire. They rely on a fuse for protection against electrical faults.

a
State the role of a fuse in a double-insulated appliance.
Your answer
Aim for approximately 1 distinct marking point.
[1]

Revision notestopic notes

Open the full topic revision notes when you are ready to review this objective in context.

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