The telephone wires which sag in summer become straight in winter. Why does this happen
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Answered by
141
During summer, the wires heat up and expand in length. Hence it sags down.
During winter, the temperature drops and wires cool down. Due to decrease in temperature,it contracts in length and hence becomes straight.
Hope it helps!
During winter, the temperature drops and wires cool down. Due to decrease in temperature,it contracts in length and hence becomes straight.
Hope it helps!
Answered by
8
Answer:
Explanation:In summer the air is hot therefore the wire expands and start saging in winter air is cold and hence wire under go constraction and become straight
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