Best answer: Which property from the list explains why rubber is used to cover electrical wiring?

The electric wires are made of metals like copper and aluminium because they are conductors but the outer covering of electric wires is made of plastic (or rubber) because it is an insulator.

Why is rubber used to cover electrical wires?

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.

Why are rubber and plastic used for covering the electrical plugs and switches?

The electrical wires are covered with plastic coverings because the plastic is an insulator and thus it protects us from getting shocks.

What properties are good for electrical wires?

The ductility of metals (such as copper) is it’s ability to be stretched into wires. A metal’s conductivity (with regards to electrics) is it’s ability to transfer electricity through it. Copper is typically used in home wiring because of it’s relative availableness and it’s good ductility and conductivity.

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Why are electric wires coated with rubber or PVC?

Complete answer:

PVC is an insulator, so wires are coated with it to keep us from getting electric shocks. Electric wires are made of metals that conduct electricity, such as copper, but they are coated with rubber. As a result, it’s an excellent material for electrical applications like cable insulation sheathing.

Which of the following plastic is used for covering electrical wires?

Some of the commonly used thermoplastic insulations used nowadays: PVC (Polyvinyl Chloride) PE (Polyethylene) ECTFE.

Why Bakelite is used in making electrical switches?

Bakelite is a thermosetting plastic. It is a poor conductor of heat and electricity. Hence, it is used for making electrical switches and plugs.

What is property of electric wires?

Electrical conductivity is a measure of how well a material transports an electric charge. This is an essential property in electrical wiring systems. Copper has the highest electrical conductivity rating of all non-precious metals: the electrical resistivity of copper = 16.78 nΩ•m at 20 °C.

What is the property of metals are used in electric wires?

Most importantly metals can pass an electric current without being affected and changed by the electricity. Electrical conductivity combined with ductility makes metals the most suitable materials for electrical transmission wires.

What is the physical property of electric wire?

A range of physical properties are investigated: tensile strength, ductility in tension, Young’s modulus, three-point bending, and bending span.

Why PVC is used in wire?

PVC insulated wires are most useful for cable insulation. Because of its resistance to fire and ease of use these wires have been most widely used for cable production. Its durability also makes these wires ideally suited or construction of cables for modern buildings.

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