Question

The transmission line of 100 meter has a sag 1 meter. What will be the sag (meter) if the height of the transmission line is increased by 20%?

Answer 1

100 meter transmission line=1 metre sag
1m transmission line=1/100 m sag
now 20%of 100
=>20m
now therefore now total length of transmission line=100+20=120m
now therefore length of sag = 1/100×120
1.2m
Ans:-If the transmission line is increased by 20% the length of sag will be 1.2m

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