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Find the Young's modulus,stress and stra...

Find the Young's modulus,stress and strain for a wire 2m long and 1 mm in diameter which when stretched by a force of 2 kg wt extends by 2mm .g=9.8 `m/s^2` .

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The young's modulus of a wire of length 2m and area of cross section 1mm^2 is 2 xx 10^10 N/m^2 . What is the work done in increasing it's length by 2mm.

Knowledge Check

  • How much will a steel wire 2m long and 1mm diameter stretch under a 5 kg wt. load ? (Y = 2 xx 10^11 N/m^2)

    A
    a)`62.42 xx 10^(-7) m`
    B
    b)`62.42 xx 10^(-6) m`
    C
    c)`62.42 xx 10^(-5) m`
    D
    d)`62.42 xx 10^(-4) m`

  • What mass must by suspended from free end of steel wire of length 2m and diameter 1 mm to stretch it by 1 mm ? (Y = 2 xx 10^11 N/m^2,g = 9.8m/s^2)

    A
    a)5kg
    B
    b)7kg
    C
    c)8kg
    D
    d)6kg

  • A certain force F increase the length of a given wire by 1mm. What force is required to increase its length by 2mm?

    A
    a)3F
    B
    b)5F
    C
    c)4F
    D
    d)2F

    • Similar Questions

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    Equal weight are suspended from two wires of same metal. One if these wires is of length 2m and diameter 1mm while the other is of length 1 meter and dia 0.5mm. In which wire there will be large extension.

    A steel wire of length 1 m and diameter 0.2mm is elongated by 1mm due to a weight of 3.14kg. The Young's modulus of steel wire is

    When the Young's moduli of two wires are in the ratio of 1:2 and their lengths in the ratio 2:1, the stresses required to produce the same elongation are in the ratio

    The breaking stress for a wire of radius 'r' of given material is F N/m^2 . The breaking stress for the wire of same material of radius 2 r is

    A steel wire of diameter 1 mm and length 2 m is stretched by a force of 2kg .wt , what is the increase in the length of wire ? (Y = 2 xx 10^11 N/m^2,g = 9.8m/s^2)

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