the diameter of a metallic sphere is 6cm. its melted and drawn into a wire having diameter of cross section 0.2cm find the length of the cross section
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diameter of the sphere =6cm=6/2=3cm=radius r of the sphere
diameter of the wire =0.2cm=0.1=radius r1 of the wire
volume of the sphere =volume of wire(cylinder)
let h be the height of the wire
4pir^3/3=pi r1 ^2h
h=4x3x3x3/3x(0.1)^2
h=36/0.01
h=3600cm
h=36metre
Hence the height of the wire is 36m
diameter of the wire =0.2cm=0.1=radius r1 of the wire
volume of the sphere =volume of wire(cylinder)
let h be the height of the wire
4pir^3/3=pi r1 ^2h
h=4x3x3x3/3x(0.1)^2
h=36/0.01
h=3600cm
h=36metre
Hence the height of the wire is 36m
mawbleiwelldone:
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