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A steel rod of length 1 m and area of cr...

A steel rod of length 1 m and area of cross section `1 cm^(2)` is heated from `0^(@)C` to` 200^(@)C` without being allowed to extend or bend. Find the tension produced in the rod `(Y=2.0 xx 10 ^(11) Nm ^(-1) , alpha = 10 ^(-5) ^(@)C ^(-1))`

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Rise in temperature `Delta t = 200^(@)C-0^(@)C = 200^(@)C`
Tension produced in the rod,
`= 2 xx 10 ^(11) xx 1 xx 10 ^(-4) xx 10 ^(-5) xx 200`
`= 4 xx 10 ^(4) N`
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