Question

3. Why do overhead telephone wires sag more in summer?​

Answer 1

Answer:

The telephone wires will sag in summer due to expansions and will break in winter due to contraction. Therefore, while putting up the wires between the poles, care is taken that in summer they are kept slightly loose so that they may not break in winter due to contraction.

Answer 2

The telephone wires will sag in summer due to expansions and will break in winter due to contraction. Therefore, while putting up the wires between the poles, care is taken that in summer they are kept slightly loose so that they may not break in winter due to contraction.

hope it's helpful to you.(θ‿θ)