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  • Two similar bar magnets P and Q, each of magnetic moment M, are taken, if P is cut along its axial line and Q is cut along its equatorial line, all the four peces obatained have<div class='qna-

Two similar bar magnets P and Q, each of magnetic moment M, are taken, if P is cut along its axial line and Q is cut along its equatorial line, all the four peces obatained have

Option: 1

Equal pole strength


Option: 2

Magnetic moment \frac{M}{}4


Option: 3

Magnetic moment \frac{M}{}2


Option: 4

Magnetic Moment M


Answers (1)

best_answer

As we have learnt,

 

Monopole Concept -

If a magnet is broken into number of pieces each piece becomes a magnet.

- wherein

Fig 3

 

 If pole strength, magnetic moment and length of each part are m', M' and L' respectively then

m' = m \;\;\;\;\;\;\;\;\;\;\;\; L' = \frac{L}{2} \\*\Rightarrow M' = \frac{M}{2}

 

 

Posted by

seema garhwal

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