Safety devices
1 mark · NormalWhich part of the plug ensures that the user does not get an electric shock if the live wire touches the casing?
- A.The earth wire
- B.The live wire
- C.The neutral wire
- D.The brass pins
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
Show answer
Correct option: The earth wire
Common mistakes: Choosing neutral wire; Choosing brass pins
Show mark scheme and worked solution
Marking points
B1 · 1 mark · Correct option selected: The earth wire
Worked solution
The earth wire provides a safe route for the current if the live wire touches the casing, preventing electric shock.