Two wires one of copper and other of iron having same cross-section area and lengths 2 m and 1.5 m respectively are fastened end and stretched by a load 10 N. If copper wire is stretched by 2mm then find the total extension of combined wire, `Y_(Cu)=1xx10^(11)N//m^(2)` and `Y_(Fe)=3xx10^(11)N//m^(2)`.

Two wires one of copper and other of steel having same cross-sectionl area end to end and strecteched by a load M. Ifcopper wire Is stretched by 1 mm, the total extnsion of the combined wire is (Givwen, Young's are Y_("copper")= 1 xx 10^(11) N//m^(2), and Y_("steel") = 2 xx 10^(11) N//m^(2))

If a copper wire of length 0.9 m and cross section 1mm^(2) is stretched by a load of 1 kg then the extension in the wire will be (Y_(c )=1.2xx10^(11)N//m^(2) and g=10m//s^(2))

A copper wire of length 1.0 m and a steel wire of length 0.5 m having equal cross-sectional areas are joined end to end. The composite wire is stretched by a certain load which stretches the copper wire by 1 mm. If the Young’s modulii of copper and steel are respectively 1.0xx10^(11)Nm^(-2)"and"2.0xx10^(11)Nm^(-2), the total extension of the composite wire is:

Two exactly similar wire of steel and copper are stretched by equal force. If the difference in their elongations is 0.5 cm, the elongation (l) of each wire is Y_(s)("steel") =2.0xx10^(11) N//m^(2) Y_(c)("copper")=1.2xx10^(11)N//m^(2)

A wire of length 10 m and of cross-section 1 xx 10^(-4) sq.m is fixed at one end and a load of 1200 kg is attached at the other end. Then the extension produced is (Y=9.8xx10^(10)N//m^(2))

A copper wire and a steel wire of same length and same cross-section are joined end to end. The compositive wire is hung from a rigid support and a load is suspended form the free end. The increase in length of the compositive wire is 4 mm. The increase in copper wire will be (Y_(copper)=1.2xx10^(11)N//m^(2),Y_(steel)=2xx10^(11)N//m^(2))

A copper wire and a steel wire of same length and same cross-section are joined end to end. The compositive wire is hung from a rigid support and a load is suspended form the free end. The increase in length of the compositive wire is 4 mm. The increase in copper wire will be (Y_(copper)=1.2xx10^(11)N//m^(2),Y_(steel)=2xx10^(11)N//m^(2))

A copper wire of length 2.2m and a steel wire of length 1.6m, both of diameter 3.0mm are connected end to end. When stretched by a force, the elongation in length 0.50 mm is produced in the copper wire. The streching force is (Y_(copper)=1.1xx10^(11)Nm^(-2) , Y_(steel)=2.0xx10^(11)Nm^(-2))

A copper wire of length 2.2 m and a steel wire of length 1.6m, both of diameter 3mm are connected end to end. When stretched by a load, the net elongation is found to be 0.70 mm. Obtain the load applied. (Y_(s)=2.0xx10^(11)Nm^(-2)) (Y_(c)=1.1xx10^(11)Nm^(-2))