Question
Electrical wires stretch and sag during summer, because it expands on heating.
Answer: Option A
:
A
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.
Was this answer helpful ?
:
A
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.
Was this answer helpful ?
More Questions on This Topic :
Latest Videos
Latest Test Papers
Submit Solution