Domestic uses and safety exam tips

Exam tips

• Mains electricity exam tip 1

  Use precise subject-specific vocabulary when you explain how to explain that the live wire carries the alternating potential difference from the supply..

  This keeps your answer tightly aligned to the approved learning objective for Mains electricity.

• Mains electricity exam tip 1

  Use precise subject-specific vocabulary when you explain how to explain that the neutral wire completes the circuit..

  This keeps your answer tightly aligned to the approved learning objective for Mains electricity.

• Mains electricity exam tip 1

  Use precise subject-specific vocabulary when you explain how to explain that the earth wire is a safety wire that stops an appliance becoming live..

  This keeps your answer tightly aligned to the approved learning objective for Mains electricity.

• Mains electricity exam tip 1

  Use precise subject-specific vocabulary when you explain how to state that the potential difference between the live wire and earth is about 230 V..

  This keeps your answer tightly aligned to the approved learning objective for Mains electricity.

• Mains electricity exam tip 1

  Use precise subject-specific vocabulary when you explain how to state that the neutral wire is at or close to earth potential, about 0 V..

  This keeps your answer tightly aligned to the approved learning objective for Mains electricity.

• Mains electricity exam tip 1

  Use precise subject-specific vocabulary when you explain how to state that the earth wire is at 0 V and carries current only if there is a fault..

  This keeps your answer tightly aligned to the approved learning objective for Mains electricity.

• Mains electricity exam tip 1

  Use precise subject-specific vocabulary when you explain how to explain why a live wire may be dangerous even when a switch in the mains circuit is open..

  This keeps your answer tightly aligned to the approved learning objective for Mains electricity.

• Mains electricity exam tip 1

  Use precise subject-specific vocabulary when you explain how to explain the danger of creating any connection between the live wire and earth..

  This keeps your answer tightly aligned to the approved learning objective for Mains electricity.

• Mains electricity exam tip 1

  Use precise subject-specific vocabulary when you explain how to apply WS 1.5 by recognising safety implications of mains electricity..

  This keeps your answer tightly aligned to the approved learning objective for Mains electricity.