Physics, asked by sunithabaitinti016, 9 months ago

A wire of cross sectional area 4mm2 is
fixed between two points at 30°C. Y = 2x10^11
Pa and alpha = 10^-5 /°C; when the temperature
falls to 20°C, the tension in the string in
(newton) is,

Answers

Answered by fernandesarthur102

4

Answer:

plz some one give the correct ans

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