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Why are electric wires covered with pla...

Why are electric wires covered with plastics ?

Text Solution

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Electric wires are made of conducting material such as copper . Electric wires are covered with plastic because plastic is an insulator and acts as a safety measure .It saves us from electric shocks and also prevents electric fires .
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Explore conceptually related problems

Martin is constructing an electrical circuit. He notices that all electrical metal wires are covered with plastic. Electrical metal wires are covered with plastic because plastics are good

Martin is constructing an electrical circuit. He notices that all electrical metal wires are covered with plastic. Electrical metal wires are covered because plastics are good

Knowledge Check

  • Assertion : The electrical wires are covered with plastic and rubber like materials . Reason : Insulators do not allow the flow of current through them .

    A
    If both assertion and reason are true and reason is the correct explanation of assertion .
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion .
    C
    If assertion is true reason is false .
    D
    If assertion is false but reason is true .

  • There is a variety of materials that are used to make components of electrical circuits . These materials have good electrical conductivity . Ispite of having the largest conducivity among metals , silver is not used to make electric wires . Aluminium copper and are generally used to make electic wires .Not only conductors , insulators are alos important .the electrical wires are covered with plastic and rubber like materials . This is used to prevent short circuit and also to protect the user . What kind of materials are used to make electrical wires in an electric circuit ?

    A
    Insulators
    B
    Conductors
    C
    Electrolytes
    D
    All of these

  • There is a variety of materials that are used to make components of electrical circuits . These materials have good electrical conductivity . Ispite of having the largest conducivity among metals , silver is not used to make electric wires . Aluminium copper and are generally used to make electic wires .Not only conductors , insulators are alos important .the electrical wires are covered with plastic and rubber like materials . This is used to prevent short circuit and also to protect the user . Insulation is used in electric wire to prevent from

    A
    a short circuit
    B
    electric shock
    C
    fuse
    D
    both (a) and (b)

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    plastic wire is

    Plastic wire is :

    In an electric wire , the outer plastic case provides

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