Induced magnetism is temporary. Comment on this statement.
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when an unmagnetised bar is placed near a magnet ,the bar become a magnet ,that is ,the bar acquire the property of attracting iron filling when they are brought near its ends. if the magnet is now removed,it is seen that nearly all the iron filling which have clung to it fall down ,that is ,the bar loses magnetism this. this is called induced magnetism and thus it is temporary.
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Answer:
A current of 0.2 A flows in a wire of resistance 15 ohm. Find the potential
the wire.
d) Induced magnetism is temporary. Comment
on this statement.
(2x)
difference across the ends of
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