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Question

A bar magnet was cut into two pieces initially; Again, each of these new pieces was cut into two more pieces, and this process was repeated once more. Then,___ is the number of north poles.

A
1
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B
4
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C
8
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D
16
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Solution

The correct option is C 8
First cut: 2 north and 2 South Poles.

Second cut: Each of the two pieces were cut into two more pieces.

So, 4 North Poles and 4 South Poles.

Third cut: Each of the 4 pieces is cut into two more pieces.

So, 8 north and 8 South Poles.

Hence there will be 8 north poles in total.

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