Mains Electricity 2

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FirstFirstLastQuiz Score TotalImage 1Question 22a) This wire normally has a potential difference of 0 V. If there is a fault so the casing of the appliance becomes live, this wire carries the current to Earth. This causes the fuse to melt, shutting down the current.2b) The job of this wire is to complete the circuit.2c) This wire carries the electrical current from the generators and always has a potential difference of around 230 V. This wire can be dangerous even if a switch in the mains circuit is open.Quiz Percentage Grade
ppefmhEdGarstin2/3Select the correct cable according to the described function.
  • Live
  • Neutral
  • Earth
  • Live
  • Neutral
  • Earth
  • Live
  • Neutral
  • Earth
67%
FirstFirstLastQuiz Score TotalImage 1Question 22a) This wire normally has a potential difference of 0 V. If there is a fault so the casing of the appliance becomes live, this wire carries the current to Earth. This causes the fuse to melt, shutting down the current.2b) The job of this wire is to complete the circuit.2c) This wire carries the electrical current from the generators and always has a potential difference of around 230 V. This wire can be dangerous even if a switch in the mains circuit is open.Quiz Percentage Grade