1.

1). 4 metres2). 1200 metres3). 12 metres4). 400 metres

Answer»

Let the maximum length of wire that can be DRAWN is L cm.

Radius of wire = 0.6 mm/2 = 0.3 mm = 0.03 cm

Volume of Copper will be same in both cases. Shape of wire is cylindrical.

⇒ Volume of sphere = Volume of cylinder

⇒ (4/3) × 3.14 × 3 × 3 × 3 = 3.14 × 0.03 × 0.03 × L

⇒ L = 40000

∴ Maximum length of wire that can be drawn = 40000 cm = 400 metres



Discussion

No Comment Found