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IF A HOLE IS MADE IN A MAGNET, THEN ITS MAGNETIC MOMENT INCREASES OR DECREASES OR REMAINS SAME?

IF A HOLE IS MADE IN A MAGNET, THEN ITS MAGNETIC MOMENT INCREASES OR DECREASES OR REMAINS SAME?

Grade:12

2 Answers

Deepak Patra
askIITians Faculty 471 Points
14 years ago

Dear Mihir,

If a hole is made into a bar Magnet, Then Magnetic dipole moment of that particular magnet remains same

As Magnetic Moment =  m(pole strength) * l(distance between poles).

So you can see that if you make a hole in the magnet then that will not affect its moment .

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Rajesh
15 Points
5 years ago
Magnetic moment will decrease because intensity of magnetisation is magnetic moment per unit volume.M is directly proportional to volume. When u make a hole volume decrease so M also decreases

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