When a bar magnet of pole strength 'm' a...

When a bar magnet of pole strength 'm' and magnetic moment 'M' is cut into n equal parts longitudinaly and transversely then pole strength and magnetic moment of each piece is respectively

`m//n, M//n`

`m//n, M//n^(2)`

`m//n^(2), M//n`

`m//n^(2), M//n^(2)`

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