Question

if a metallic cube of edge 1cm is drawn Into a wire of diameter 4mm .find the length of wire​

Answer 1

Answer:

Step-by-step explanation:

side of cube (a)= 1 cm

volume of cube = a³ = 1 cm³ = 1000 mm³

volume of material remains same

So,

volume of cube = volume of wire

volume of wire =  * r² * h

1000 mm³ =  * (4/2)² * h

h = 1000/[ * 4]

h = 250/\pi mm = 25/\pi cm

Answer 2

Answer:

7.96 cm

Step-by-step explanation:

volume of cube =1

let length of wire be 'l'

volume of wire=(pi)*r^2 * l

=3.14*0.2*0.2*l=1

l=1/0.1256

l=7.96cm