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Electrical conductivity with salt water

#Roobert33 This experiment is only for vision, it serves to understand how the salt dissolved in water facilitates an optimal condition for the passage of the current between the two iron nails.
The working voltage for this experiment must be 230 volts AC.
MATERIALS: 500 W 230 V light bulb or 5 230 V 100 W light bulbs. Two metal-conductor nails or others.
glass tray. Water and salt Two electric wires.