Why do electrical wires have plastic covering?
Answers
Most electrical wire is covered in a rubber or plastic coating called insulation. ... The purpose of insulation covering the metal part of an electrical wire is to prevent accidental contact with other conductors of electricity, which might result in an unintentional electric current through those other conductors
Explanation:
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Answer:
Most electrical wire is covered in a rubber or plastic coating called insulation. ... The purpose of insulation covering the metal part of an electrical wire is to prevent accidental contact with other conductors of electricity, which might result in an unintentional electric current through those other conductors.
Explanation:
Electrical current flows when there is a presence of a driving force (called the ElectroMotive Force or E.M.F.) and a path for current flow. Now, this ElectroMotive Force can be created using number of ways, for the sake of understanding, let's take the case of electric cells or dry cells.
Here, electrodes (two suitable conducting materials) are kept in electrolyte (liquid or semi solid paste like material). These two chemically react with each other and the result is the accumulation of charged particles at the surface of electrodes. When this charged particles get a way to travel, the negative charged particles move towards positive ions thus producing what we conventionally call Electric current. This path for electrons is called conductor (or the wire as mentioned in question). And we harness the motion of this electrons by placing our equipment (like a light bulb) in between this path...
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