How to do it
Dear Student,
Solution)
Solution)
Diameter of copper wire =1 cm
Radius cm
Height of copper rod =Length of copper rod =8 cm
Volume of rod
Let the radius of wire be ‘r’ cm
As 1 m = 100 cmlength of the wire=Height of the wire =18 m =1800 cm
As rod is converted into wire,Therefore,
Volume of cylinder wire = Volume of cylindrical rod
As radius cannot be negative,
⇒ r = 0.033 cm
Hence thickness of the wire is 0.033 cm.
⇒ r2
⇒ r cm
Now, thickness of wire = diameter of wire = 2r = 2(1/30) = (1/15) cm
Regards!