One cable, 10 wires
One cable, 10 wires
An electrician install an underground cable of 10 wires to connect two visually isolated buildings. He realised that he has forgotten to mark the wires. He has a continuity tester, an electrical connector and some labels to mark the wires.
How can he pick out the corresponding wires on each side of the building in only one backward and forward?





 
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