No the traction rails (not the ones the trains wheels run on) are discharged at the end of passanger service so that engineers can work down the tunnel at night. The traction rails have 600v DC running through them hence the need to discharge at night to prevent electric shock.
Central, Circle, District, Metropolitan, Waterloo.
Tower Hill station on the District and Circle lines.
tube lines: Bakerloo, Central and Victoria; Jubilee, Northern and Piccadilly; sub-surface lines: District, Hammersmith & City, Circle, Metropolitan, East London (currently in major refurbishment to become part of the London Overground)
The Tube. Some of the tubes lines have nicknames too such as the Northern Line (the misery line) and Waterloo and City (the drain).
Yes, the nearest station is Wembley Park on the Jubilee and Metropolitan lines.
Oxford Circus, on the Victoria, Bakerloo and Central lines.
The London Underground (the tube), has 11 lines and 270 stations.
Tube Lines's population is 3,500.
The Northern and Piccadilly lines are tube lines which have no branches at all.
It's a small passage
The Circle Line Unfortunately this answer is wrong! According to Transport for London the only tube line to connect all London Underground lines is the Jubilee Line.
The Tube lines in London, in order, are: Bakerloo Line, Central Line, Circle Line, District Line, Hammersmith & City Line, Jubilee Line, Metropolitan Line, Northern Line, Piccadilly Line, Victoria Line, and Waterloo & City Line. Each line is color-coded on the Tube map and serves various areas of London, connecting key stations and landmarks.