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Question

Why rubber or plastic used to cover electric wires?


A
To appear good
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B
They are insulators and do not allow electric current to pass when we touch those wires
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C
To give strength to the circuit
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D
All of the above
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Solution

The correct option is D They are insulators and do not allow electric current to pass when we touch those wires
Rubbers and plastic are used to cover electric wires because they are insulators and do not allow electric current to pass when we touch those wires.

Physics

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