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CBSE Class 9 Answered

1.54 cm3 of iron is drawn into a wire of diameter 2.8 mm. Find the length of the wire.
Asked by Topperlearning User | 13 Oct, 2017, 01:57: PM
answered-by-expert Expert Answer

Given: diameter of the wire = 2.8 mmradius (r) = 1.4 mm

Let length of the wire = h

1.54 cm3 = 1540 mm3 of iron is drawn into a wire.

Therefore,

 

Therefore length of the wire drawn is 250 mm.

Answered by | 13 Oct, 2017, 03:57: PM
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