Question

9. 2.2 cubic dm of brass is to be drawn into
cylindrical wire 0.50 cm in diameter. Find
the length of the wire.​

Answer 1

Answer:

Given, 2.2 dm3 of brass is to be drawn into a cylindrical wire of Diameter = 0.25 cm So, radius of the wire (r) = d/2 = 0.25/2 = 0.125 x 10-2 cm Now, 1 cm = 0.01 m So, 0.1cm = 0.001 m Let the length of the wire be (h) We know that, Volume of the cylinder = πr2h It’s understood that, Volume of cylindrical wire = Volume of brass of 2.2 dm3 h = 448 m Therefore, the length of the cylindrical wire drawn is 448m

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