Answers

2014-08-27T23:45:07+05:30
Magnetisation means magnetic moment/unit volume ,repulsionis the sure testof magnetisation . ie like poles repel ie north and north  or south and south
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2014-08-29T21:30:25+05:30
Its directionism NS is the sure test.
there is one more test when we pass an electric current  on around of a magnet there diretion be chaged there NS moment.
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