viii) A composite wire is prepared by joining
a tungsten wire and steel wire end to end.
Both the wires are of the same length
and the same area of cross section. If this
composite wire is suspended to a rigid
support and a force is applied to its free
end, it gets extended by 3.25mm. Calculate
the increase in length of tungsten wire and
steel wire separately.
[Given: Y = 2 x 10 N/m,
Y = 3.40 x 10$N/m]
Tungsten
[Ans: extension in tungsten wire = 3.244 mm,
extension in steel wire = 0.0052 mm)
steel
a
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Answer: extension of tungsten wire = 3.244 mm
extension of steel wire = 0.0052
Explanation:
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