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Why is a spring made of steel, not of co...

Why is a spring made of steel, not of copper?

Text Solution

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A spring will be better one, if a large restoring force is setup in it on being deformed, which in turm depends upon the elasticity of the material of the spring. Since the Young's modulus of elastivity of steel is more than that of copper. Hence steel is prefferred in making the spring.
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Knowledge Check

  • A spring is made of steel and not of copper because

    A
    steel is more elastic than copper
    B
    steel is less elastic than copper
    C
    steel or less plastic than copper
    D
    steel is less plastic than copper

  • Why springs are made up of steels and not copper commonly ?

    A
    Copper is costlier than steel
    B
    Copper is more elastic than steel
    C
    Steel is more elastic than copper
    D
    None of the above

  • Assertion : identical springs of steel and copper are equally stretched. More work will be done on the steel spring. Reason : Steel is more elastic than copper.

    A
    (a) If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.
    B
    (b) If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
    C
    If Assertion is true, but the Reason is false.
    D
    If Assertion is false but the Reason is true.

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    Two wire of same radius and lengh the are subjected to the same load. One wire is of steel and the other is of copper. If the Young's modulus of steel is twice that of copper, the ratio the energy stored per unit volume in steel to that of copper wire is

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