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Firemen advise homeowners to check the electrical connections in their homes especially the condition of the wires. They advise homeowners to replace exposed electrical wires. Why is there a need to cover exposed wires?
A. To avoid short circuit. B. Avoiding exposed parts of the electrical wires to touch one another. C. When the exposed wires were made to touch, a shortened path was provided for the current, hence the term short circuit. D. A wire is a conductor; the covering or sheath is an insulator. If you do not cover/insulate a wire, anything coming into contact with it which is not an insulator and which has any route to ground, or any potential difference will conduct some current - causing electricity to flow through it.
Sagot :
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