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This diagram shows the wiring inside an electric plug - OCR Gateway - GCSE Physics - Question 5 - 2023 - Paper 2
Question 5
This diagram shows the wiring inside an electric plug. Which row shows the correct names of the three pins labelled X, Y and Z? X Y Z A earth neutral ... show full transcript
Worked Solution & Example Answer:This diagram shows the wiring inside an electric plug - OCR Gateway - GCSE Physics - Question 5 - 2023 - Paper 2
Step 1
Which row shows the correct names of the three pins labelled X, Y and Z?
Answer
To determine the correct names of the pins labelled X, Y, and Z in an electric plug, it is essential to know that:
- The live wire is connected to the pin that carries the current to the appliance.
- The neutral wire serves as the return path for the current.
- The earth wire provides safety by directing any excess current away from the appliance.
In standard UK plugs:
- Pin X is typically the neutral pin.
- Pin Y is the earth pin.
- Pin Z is the live pin.
From the options provided:
- Option C states that X is neutral, Y is earth, and Z is live, which aligns with standard wiring configurations.
Thus, the correct answer is C: neutral for X, earth for Y, and live for Z.