North London hit by blackout
Thousands of homes were plunged into darkness after a power cut in north London.
More than 2,800 people were affected by the blackout which struck parts of Muswell Hill just after
8.15 last night. EDF Energy said electricity was restored in some areas after 10 minutes but others
were affected for three hours as engineers battled to repair a fault in an underground cable.
The blackout comes a week after one of the biggest electrical failures in London.
Imagine the power gets cut off for hours. The lights go out at home, in the shops, on public transport...
Which of the following systems will be affected when there's no electricity?