A steel rod with y = 2.0 xx 10^11 Nm^(...

A steel rod with `y = 2.0 xx 10^11 Nm^(-2) and alpha = 10^(-5)""^@C^(-1)` of length 4 m and area of cross - section `10 cm^2` is heated from `0^@C` to `400^@C` without being allowed to extend. The tension produced in the rod is `x xx 10^5` N where the value of x is __________.

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