5. Electric wires have a coating of insulating material.
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Explanation:
yes electric wire have a coating of insulating material
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Most electrical wires are 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.
PVC ( Polyvinyl chloride ) is also an insulator that protect us from the electric current.
Examples of insulators are :-
- Styrofoam.
- Plastic
- Wax.
- Rubber.
- Dry air.
- Glass.
- Ceramics, etc.
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