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Why are electrical cords insulated?

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Wiki User
November 09, 2009 9:45PM

Electrical cords are insulated to prevent the electricity from going from one wire to the other wire without first going through the lightbulb or electrical device. Electricity is lazy. It would rather jump from the hot wire to the neutral wire and go back to the power plant without doing any work than have to go through the light bulb and do some work. You would still have to pay the electric bill.