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