Ajay is a curious child. One day he was trying to build an electric circuit on his own. Ile
used a 9V battery and two strips of insulated copper wire. He placed the open end of one of the wires on the positive terminal and the other wire on the negative terminal. Out of curiosity, he wuched the free end of both the wires together to check what would happen
What would have happened when Ajay tuched both the free ends of the copper wire?
h) Is it advisable for Ajaym do sn?
c) Name anyone material that is used to insulate electrical wires.
d) Name a material other than copper that is used to make electrical wires.
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c. ans:Electrical wires may be insulated with polyethylene, crosslinked polyethylene (either through electron beam processing or chemical crosslinking), PVC, Kapton, rubber-like polymers, oil impregnated paper, Teflon, silicone, or modified ethylene tetrafluoroethylene (ETFE)
d. ans: Aluminum has high conductivity and is more malleable and flexible than copper. It is more corrosion-resistant than copper, which makes it the best choice for power transmission through aerial lines.
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