If you cut a magnet from between, and again cut the resulting two pieces from between, what is the resulting number of poles as compared to initial number of poles?

2 times

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4 times

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6 times

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8 times

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Solution

The correct option is B 4 times
The number of poles will double everytime you cut a magnet. As you cut the first piece, which initially has two poles, you get two magnets. Those two magnets will have 4 poles in total. If you cut the two pieces from the middle, the number of poles will become 8. Hence, 4 times the initial number of poles.

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