A wire is suspended from the ceiling and stretched under the action of a weight F suspended from its other end. The force exerted by the ceiling on it is equal and opposite to the weight.

a) tensile stress at any cross-section A of the wire is \frac{F}{A}

b) tensile stress at any cross-section is zero

c) tensile stress at any cross-section A of the wire is2\frac{F}{A}

d) tension at any cross-section A of the wire is F

Answers (1)

The answer is the option (a) and (d)

We know that stress = \frac{F}{A} and hence option a is correct

Force balances the tension, which means T=F and hence option d is correct.

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