A copper rod of length 27.5 m has its temperature increases by 35.9 degrees celsius. how much does its length increase?(unit=m)

Question

A copper rod of length 27.5 m has its temperature increases by 35.9 degrees celsius. how much does its length increase?(unit=m)

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1 year 2021-09-04T05:48:47+00:00 2 Answers 3 views 0

Answers ( )

    0
    2021-09-04T05:50:14+00:00

    The increase in length = 1.87 x 10⁻²

    Explanation:

    When copper rod is heated , its length increases

    The increase in length can be found by the relation

    L = L₀ ( 1 + α ΔT )

    here L is the increased length and L₀ is the original length

    α  is the coefficient of linear expansion and ΔT is the increase in temperature .

    The increase in length = L – L₀ = L₀ x α ΔT

    Substituting all these value

    Increase in length = 27.5 x 1.7 x 10⁻⁵ x 35.9

    = 1.87 x 10⁻² m

    0
    2021-09-04T05:50:20+00:00

    Answer:0.01678325m

    Explanation:

    Original length(L1)=27.5m

    Temperature rise(@)=35.9°C

    Linear expansivity(α)=0.000017

    Length increase(L)=?

    L=α x L1 x @

    L=0.000017 x 27.5 x 35.9

    L=0.01678325m

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