MCQ
Let a wire be suspended from the ceiling (rigid support) and stretched by a weight $W$ attached at its free end. The longitudinal stress at any point of cross-sectional area $A$ of the wire is :
- AZero
- B$2 W / A$
- ✓$W / A$
- D$W / 2 A$
✓
Answer
Correct option: C.
$W / A$
c
Stress $=\frac{ IRF }{ A }$
Stress $=\frac{ IRF }{ A }$
Stress $=\frac{ W }{ A }$
(Here $A$ Cross-sectional Area)
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