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Question -

2.2 cubic dm of brass is to be drawn into a cylindrical wire of 0.25 cm in diameter. Find the length of the wire?



Answer -

Given,

2.2 dm3 ofbrass 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*10-2 cm

Now, 1 cm = 0.01 m

So, 0.1cm = 0.001 m

Let the length of thewire be (h)

We know that,

Volume of the cylinder= πr2h

It’s understood that,

Volume of cylindricalwire = Volume of brass of 2.2 dm3

h = 448 m

Therefore, the lengthof the cylindrical wire drawn is 448 m

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