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If rod is initially compressed by Deltal...

If rod is initially compressed by `Deltal` length then what is the strain on the rod when the temperature
(a) is increased by `Delta theta` (b) is decreased by `Delta theta`

Text Solution

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(a) Strain `=(Deltal)/(l)+ alpha Delta theta` (b) Strain `=|(Deltal)/(l)-alpha Delta theta|`
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