#### Question :

A copper rod of diameter 1 cm and length 18 m is drawn into a wire of length 18 m of uniform thickness. Find the thickness of the wire.Submitted on 6/2/2024 | Answered by Vandana Rana#### Answer :

Diameter of copper wire =1 cmRadius(r) = 1 / 2 cm

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Height of copper rod = Length of copper rod(h) = 8 cm
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length of wire (H)=18 m

=1800 cm

volume of rod = volume of wire

πr²h = πR²H

1/2×1/2×8 =R²1800

R² =1/900

R = 1/30

thickness of wire =2R

=2/30

=1/15cm