Radhika and her friends were decorating the class bulletin board. She dropped the box of Stainless steel
pins by mistake. She tried to collect the pins using a magnet but she could not succeed.
a) What could be the reason for this?
b) Which material do you think is common in all the ordinary objects which are attracted by a
magnet?
c) Give the various ways by which Magnetization of a magnet could be lost.
d) Why the poles of a magnet cannot be isolated?
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Answer:
a) The reason for this is that stainless steel is a non magnetic substance
b) Iron and cobalt are common to be attracted by the magnet
c) Dropping from some height, being exposed to high temperature etc.
d) Magnetic poles always occur in pairs of north and south.it is not possible to isolate north and south poles.
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