An aluminium wire and a copper wire of equal length, and equal cross section are joined end to end. The composite wire is suspended from a rigid support and a load is suspended from its free end. If the increase in the length of the composite wire is 9 mm, find the increase in the length of each wire. [Young's moduli for aluminium and copper are 7 × 1010 Pa and 1.1 × 10" Pa, respectively.]
An aluminium wire and a copper wire of equal length, and equal cross section are joined end to end. The composite wire is suspended from a rigid support and a load is suspended from its free end. If the increase in the length of the composite wire is 9 mm, find the increase in the length of each wire. [Young's moduli for aluminium and copper are 7 × 1010 Pa and 1.1 × 10" Pa, respectively.]
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![An aluminium wire and a copper wire of
equal length, and equal cross section are joined
end to end. The composite wire is suspended
from a rigid support and a load is suspended
from its free end. If the increase in the length
of the composite wire is 9 mm, find the
increase in the length of each wire.
[Young's moduli for aluminium and copper
are 7 × 101º Pa and 1.1 × 10" Pa, respectively.]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa49f7229-7ef0-4405-a6c6-b00371986c39%2F2572e237-3443-4199-adb5-31792caddf23%2Falufz3t_processed.jpeg&w=3840&q=75)
Transcribed Image Text:An aluminium wire and a copper wire of
equal length, and equal cross section are joined
end to end. The composite wire is suspended
from a rigid support and a load is suspended
from its free end. If the increase in the length
of the composite wire is 9 mm, find the
increase in the length of each wire.
[Young's moduli for aluminium and copper
are 7 × 101º Pa and 1.1 × 10" Pa, respectively.]
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