Question

1cm³ of copper wire is drawn into a wire 0.22mm in diameter. find the length of the wire​

Answer 1

Step-by-step explanation:

Volume of copper =1cm

3

Length of wire = x

Radius =0.1 mm

Volume of wire = volume of copper

⇒πr

2

h=1cm

3

⇒π(

10

0.1

)(

10

0.1

)h=1

⇒h=

0.7×0.1×π

10×10×100

=3183cm

⇒h=31.83m.

solution