Cambridge IGCSE Physics practice

Paper 3 structured question: Electrical safety

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Paper

Marks

Topic

Electrical safety

Exam-style question

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Paper 3Theory (Core)1 marks

Understanding electrical safety in appliances.

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]

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Paper 3Theory (Core)1 marks

Description

In double-insulated appliances, the absence of an earth wire means that the fuse is the primary safety feature.

a
State why double-insulated appliances do not require an earth wire.
Your answer
Aim for approximately 1 distinct marking point.
[1]