A steel wire of uniform cross-section `1 mm^(2)` is heated to `70^(@)C` and stretched by tying it two ends rigidly. Calculate the change in tension on

Question

A steel wire of uniform cross-section `1 mm^(2)` is heated to `70^(@)C` and stretched by tying it two ends rigidly. Calculate the change in tension on

A steel wire of uniform cross-section `1 mm^(2)` is heated to `70^(@)C` and stretched by tying it two ends rigidly. Calculate the change in tension on the wire when temperature falls form `70^(@)C` to `35^(@)C`
A. 55 N
B. 88 N
C. 66 N
D. 77 N

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - D
`F=YA alpha Delta t`

5 views Answered 2023-02-05 15:29