Question

cranes fitterd with strong magnet seprate iron objects form the junk due to ___________force.​

Answer 1

Answer:

It is difficult to manually load and transport heavy scrap iron. Therefore, a permanent magnet of a very big size is necessary and this cannot be easily created. Hence, we create a powerful electromagnet by passing a current through a big iron disc. Thus, the big disc becomes powerful magnet and the scrap iron gets attracted to it, which can be easily loaded and transported. Hence a magnetic crane is used to load and transport scrap iron and the given statement is true.

Answer 2

Explanation:

Thus, magnet of crane easily seperates the iron particles from the mixture simply because iron scraps get attracted to it is thus isolated from remaining junk and separated.