the diameter of a matallic wire is 6cm .the sphere is melted and drawn into a wire of uniform cross section.if the length of the wire is36m,find its radius
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the question is wrong
Khushmangill:
ya..sorry instead of metallic wire its metallic sphere
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Radius of sphere = 3 cm
Now volume of sphere = 43π(3)343π(3)3
Now sphere is melted and draw into wire
Volume of sphere = Volume of cylinder formed
43π(3)3=πr2×360043π(3)3=πr2×3600
36π=r2x3600π36π=r2x3600π
l=r2x100l=r2x100
r2=1100r2=1100
r=110cm=0.1cmr=110cm=0.1cm
hope it will help u
Now volume of sphere = 43π(3)343π(3)3
Now sphere is melted and draw into wire
Volume of sphere = Volume of cylinder formed
43π(3)3=πr2×360043π(3)3=πr2×3600
36π=r2x3600π36π=r2x3600π
l=r2x100l=r2x100
r2=1100r2=1100
r=110cm=0.1cmr=110cm=0.1cm
hope it will help u
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