Math, asked by nandana7105, 9 months ago

A copper wire 3 mm in diameter is worng about a cylinder whose length is 12 cm and diameter 10 cm so as to cover the surface of the cylinder. find the length an mam of the wire . assuming the dencity of copper to be 8.88 g per cm3​

Answers

Answered by madhunisha05
0

Answer:

We have

diameter of copper wire d=3mm=10^3 cm

Height (length) of the cylinder =1.2m=120cm

Number of rounds taken by the wire to cover the curved surface of the cylinder =  d

h =3/10

120  =400

Length of wire used in taking one round =2πr=(2×3.14×5)cm=31.4cm

Total length of wire used in converting the curved surface of the cylinder

=(3.14×400)cm=12560cm=125.6m

Mass of the wire = Length × density =12560×8.88gram=111532.8gm=111.533kg

Step-by-step explanation:

Answered by Dharmika27
1

hope it is helpful I think handwriting u can't understand try to understand

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