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[" What will be the stress at "-20^(@)C," if a steel rod "],[" with a cross-sectional area of "150mm^(2)" is "],[" stretched between two fixed point? The tensile "],[" load at "20^(@)C" is "5000N" ."],[[" (Assume "alpha=11.7times10^(-)pC,Y=200times10^(11)N/m^(2))],[" (1) "127times10^(6)N/m^(2)," (2) "1.27times10^(6)N/m^(2)],[" (3) "127times10^(6)N/m^(2)," (4) "0.127times10^(8)N/m^(2)]]

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What will be the stress at -20^(@) C, if a steel rod with a cross-sectional area of 150 mm^(2) is stretched between two fixed points? The tensile load at 20^(@) C is 5000 N (Assume, alpha=11.7xx10^(-6)//^(@)C and Y = 200 xx 10^(11) N//m^(2) )

What will be the stress at -20^(@) C, if a steel rod with a cross-sectional area of 150 mm^(2) is stretched between two fixed points? The tensile load at 20^(@) C is 5000 N (Assume, alpha=11.7xx10^(-6)//^(@)C and Y = 200 xx 10^(11) N//m^(2) )

A steel rod with a cross-sectional area of 150 mm^(2) is stretched between two fixed points. The tensile load at 20^(@)C is 5000N . (a) What will be the stress at -20^(@)C ? (b) At what temperature will the stress be zero ? (Assume alpha=11.7mu m//m^(@)C and Y=200GN//m^(2) )

A steel rod with a cross-sectional area of 150 mm^(2) is stretched between two fixed points. The tensile load at 20^(@)C is 5000N . (a) What will be the stress at -20^(@)C ? (b) At what temperature will the stress be zero ? (Assume alpha=11.7mu m//m^(@)C and Y=200GN//m^(2) )

A wire of cross sectional area 3 mm^(2) is just stretched between two fixed points at a temperature of 20^(@)C . Then the tension in the wire when the temperature falls to 10^(@)C is, (alpha =1.2 xx 10^(-5) //""^(@)C, Y=2xx10^(11) N//m^(2))

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A wire of cross sectional area 3mm^(2) is just stretched between two fixed points at a temperature of 20^(@) . Determine the tension when the temperature falls to 20^(@) C . Coefficient of linear of expansion alpha = 10^(-5)//"^(@)C and Y = 2 xx 10^(11)N//m^(2) .