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Q.

[26]

Three magnets, A, B, and C, were dipped in a heap of iron filling. The figure shows the amount of iron filing sticking to them. The strength of these magnets will be__ 


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a

A=B=C

b

None of the above  

c

A<B<C

d

A>B>C

answer is A.

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Detailed Solution

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Three magnets, A, B, and C, were dipped in a heap of iron filling. The figure shows the amount of iron filing sticking to them. The strength of these magnets will be A>B>C.
As we know, the stronger the magnet, the greater will be the iron filing sticking on them. More iron filings stick in the magnet because the magnetic strength of a bar magnet will be maximum at its ends. So from the figure, it is clear that the iron filings stuck on are the most and are the least. So the strength of the bar magnets will be in the order A>B>C.
  
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