Electrical wires stretch and sag during summer, because it expands on heating.

True

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False

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Solution

The correct option is A True
Metals expand on heating. Electrical wires being made of metals become warmer and expand in both length and diameter. That is why they sag. In winters, they are cooler and hence they shrink.

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In summers, electric wires sag a little as ___________ on heating.

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