CBSE Class 10 Answered
Which amount of gold is required for gold wire of 100 millimetre length
Asked by saradamahapatra9999 | 07 Feb, 2019, 04:11: PM
Expert Answer
This can be found when the diameter of the wire which is to be drawn is known.
On having an enlarged view of a wire, we come to know that the piece of the wire is actually in the shape of a cylinder.
The amount of gold required to draw a wire of 100 mm length would be the volume of cylinder formed by this piece of wire.
volume of a cylinder = π r2 h
here, height of the cylinder is equal to the length of the wire
volume of required gold = π r2 (100) mm3
Answered by Science Mate | 09 Feb, 2019, 04:56: PM
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