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
b) tensile stress at any cross-section is zero
c) tensile stress at any cross-section A of the wire is
d) tension at any cross-section A of the wire is F
The answer is the option (a) and (d)
We know that stress = and hence option a is correct
Force balances the tension, which means T=F and hence option d is correct.