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Physics
Physics
Problem
A copper wire (
Y
=
1
×
10
11
N/m
2
Y = 1 \times 10^{11} \text{ N/m}^2
Y
=
1
×
1
0
11
N/m
2
) of length 6m and a steel wire (
Y
=
2
×
10
11
N/m
2
Y = 2 \times 10^{11} \text{ N/m}^2
Y
=
2
×
1
0
11
N/m
2
) of length 4 m each of cross section
10
−
5
m
2
10^{-5} \text{ m}^2
1
0
−
5
m
2
are fastened end to end stretched by a tension of 100 N. The elongation produced in the copper wire is-
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