this is just because the dipole in the magnet gets disaligned due to AC current
why demagnetisation takes place if in an magnet ac is passed throiugh awire wound on it ???????????????????
-
UP 0 DOWN 0 0 2

2 Answers
Akand
·2009-06-26 06:27:26
well i dunno this........BUT i strongly think that....
when u apply an AC a magnetic field is produced around it in d opposite direction of d magnetic field of d magnet....so both gets cancelled off so demagnetisation occurs.......
well if d ans is too dumb...dont scold me...
kartik sondhi
·2009-06-26 08:21:21