Why wires on electric poles expands during hot summer days.
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Explanation:
Because the cores of overhead wires are made from copper. ... The higher temperatures in summer make the copper expand - so the lines get slightly longer. In winter, the reverse happens - the lines contract and tighten up. Hope this was helpful for you.
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Answer:
Yes
Explanation:
Because the average of metal's interatomic space's graph's slope is more towards expansion than towards contraction..which means..that due to increase in temperature..there is tendency of both expansion and contraction but expansion(atoms moving far) is more prominent.so expansion occurs and it's vice versa in cold weather
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