A copper rod of diameter 1cm …
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Sia ? 4 years, 8 months ago
According to the question,
Diameter of the copper wire = 1 cm
Radius of the copper wire = 0.5 cm
Length of the copper rod = 8 cm
Volume of the cylinder = {tex}\pi r^2 h{/tex}
{tex}=\pi(0.5)^2 10{/tex}.....(i)
Length of the wire = 18 m = 1800 cm
Volume of the wire ={tex}\pi r^2 h{/tex}
{tex}=\pi(r)^2. 1800{/tex}
By equating both the equations. we get,
r2 = 200.00044
r= 0.033 cm
Therefore, The thickness of the wire is 0.033 cm.
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