If a bar magnet is cut lengthwise into $3$ parts, the total number of poles will be

$2$

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$3$

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$4$

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$6$

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Solution

The correct option is D
$6$

When a bar magnet is broken into a finite number of pieces, each one has two poles, one north, and one south.
So when a bar magnet is torn into three pieces, each one gets two poles around its ends.
Therefore, a magnet has always a pair of poles.
Hence, option D is correct.

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If a bar magnet is cut lengthwise into 3 parts, the total number of poles will be

The correct option is D 6When a bar magnet is broken into a finite number of pieces, each one has two poles, one north, and one south. So when a bar magnet is torn into three pieces, each one gets two poles around its ends.Therefore, a magnet has always a pair of poles.Hence, option D is correct.

If a bar magnet is cut lengthwise into $3$ parts, the total number of poles will be