Cambridge IGCSE Combined Science practice

Paper 3 structured question: Electrical safety

Try the question first, then check the answer and practise the same topic again.

At a glance

Paper

Marks

Topic

Electrical safety

Exam-style question

Try this first

Paper 3Theory (Core)3 marks

Evaluate the safety features in electrical devices.

Description

Electrical devices are equipped with various safety features to protect users from electric shock.

a
Evaluate the effectiveness of double insulation compared to earthing in preventing electric shock.
Your answer
Aim for approximately 3 distinct marking points.
[3]

0 of 1 part answered

Answer every part before opening the mark scheme.

Common mistake

No common mistake is linked to this question yet.

Flashcard 1 of 6

Press Space to flip, arrows to move

Paper 3Theory (Core)3 marks

Description

Electrical devices must be designed to prevent electric shock to users. This can be achieved through various safety features.

a
Discuss the necessity for the outer casing of electrical devices to be either non-conductive or connected to the earth.
Your answer
Aim for approximately 3 distinct marking points.
[3]