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ALL PHYSICS DOUBTS - POST HERE !!

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Ivo:

--- Quote from: A@di on May 26, 2010, 11:26:12 am ---magnetising magnet.........??? huh?? didnt get u

--- End quote ---

Like can a permanent magenet be created with iron

~HyDrOgEn~:

--- Quote from: A@di on May 26, 2010, 11:17:01 am ---A - both point towards north

--- End quote ---
Yeah i knowthat, but why explain!!!

Ghost Of Highbury:

--- Quote from: ~HyDrOgEn~ on May 26, 2010, 11:30:24 am ---Yeah i knowthat, but why explain!!!

--- End quote ---

 a compass always points towards the north, the brass rod doesnt make a difference.

Ghost Of Highbury:

--- Quote from: Ivo on May 26, 2010, 11:29:20 am ---Like can a permanent magenet be created with iron

--- End quote ---

no iron is a soft magnetic material. it loses its magnetism easily.

steel can be used to create permanent magnets.

Ivo:

--- Quote from: A@di on May 26, 2010, 11:32:15 am ---no iron is a soft magnetic material. it loses its magnetism easily.

steel can be used to create permanent magnets.

--- End quote ---

So I still don't get it.  For induced magnetism, can a hard magnetic material (eg steel) be magnetised when a manget is brought near it?  Does it lose magentism when magnet is taken away?

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