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 - Physics MCQ NEET 2023 2026 | ExamTest.live | ExamTest.live

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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:

A $\frac{2 W}{A}$
B $\frac{W}{A}$
C $\frac{W}{2 A}$
D $Zero$

Solution & Step-by-step Explanation

Stress is defined as the restoring force per unit area. For a suspended wire under a load W, the tension T at any point (ignoring wire weight) is equal to W . Longitudinal Stress = \frac{Force}{Area} = \frac{W}{A}

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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:

A

\frac{2 W}{A}

B

\frac{W}{A}

C

\frac{W}{2 A}

D

Zero

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