The coloured plastic covering on electric wires makes it:

More attractive

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Safe to touch

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Resistant to corrosion

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Long lasting

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Solution

The correct option is B Safe to touch
The materials that do not allow electric current to pass through them are known as insulators. The outer covering of electric wires is made of plastic because plastic is an insulator. The plastic outer covering does not allow the electric current to pass through it and reach us. Insulators are used for safety and to protect us from getting electric shocks.

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Similar questions

Plastic covering on electric wires provides :

Q. Electrical wires generally found in our homes have a plastic covering for safety purposes.

We use plastic as outer covering on electrical wires.

Which plastic is used :

(a) for making uniforms of fire-men fire resistant ?

(b) for giving non-stick coating on frying pans?

(d) for making insulation (covering) of electric wires ?

(e) for making electric switches ?

(f) for making flexible water bottles ?

Categorize the materials of the following products into ‘can be recycled’ and ‘cannot be recycled’.

Telephone instruments, plastic toys, cooker handles, carry bags, ball point pens, plastic bowls, plastic covering on electrical wires, plastic chairs, electrical switches.

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