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How is Scrap Iron Separated from a Heap of Waste Materials in Factories? - Science

Short Note

How is scrap iron separated from a heap of waste materials in factories?

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Scrap iron is separated from a heap of waste materials in factories by using large electromagnets fitted to a crane.  The electromagnet fitted crane is moved up and away from the waste to drop these scrap iron objects at a separate place. Electromagnets are used for this purpose because one can switch on and off the supply of magnetism during the process of lifting and dropping of the iron pieces.

Concept: Matter
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Lakhmir Singh Class 9 Chemistry - Science Part 2
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