In one wrap, the wire will
cover a width of 0,5 cms. Since Cylinder is 200 cms
long, it will require200/0.5 or 400
wraps to cover the whole surface
In one wrap the length of the
wire used will be equal to the circumference of the cylinder which is equal to πd, or 140π cms.(Diameter
of the cylinder is 140cms)
Hence total length of the
wire used will be 400(140π) cms or, 56000π cms
Volume of the wire will be
given by the formula πr2h
=π(0.25)2
(56000 π) cm3
= 3500 π2
cm3
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