Question

Wires on electric poles are mounted tightly, in winter.

• A. True
• B. False

Answer 1

The correct option is B False

As due to their linear coefficient of expansion

$\alpha =\frac{1}{L}\frac{dL}{dT}$

the wires will get a bit loose when summer comes, so they are safe. If they are loosely mounted in winters then as when summer comes, they will become more loose and can cause accidents.