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55.A bar magnet when placed at an angle of 30 degree to the direction of magnetic field induction of 5×(10)-2 T,experiencing a moment of couple 25× (10)-6 Nm.If the length of the magnet is5 cm,its pole strength is? |
| Answer» 55.A bar magnet when placed at an angle of 30 degree to the direction of magnetic field induction of 5×(10)-2 T,experiencing a moment of couple 25× (10)-6 Nm.If the length of the magnet is5 cm,its pole strength is? | |