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AP Physics 2
12.1 Magnetic Fields
BeginnerMCQConceptual14.7k
A horizontal schematic diagram showing two cylindrical material blocks placed side-by-side in a region with a uniform external magnetic field. On the left is a block labeled Sample X (Soft Ferromagnetic) and on the right is a block labeled Sample Y (Hard Ferromagnetic). Horizontal magnetic field lines with arrowheads pointing to the right pass through both cylinders. The field lines originate from a vertical rectangular block labeled N on the far left and terminate at a vertical rectangular block labeled S on the far right. No other labels, lines, text, or axes appear.
Two ferromagnetic samples placed in an external magnetic field.
Two unmagnetized cylindrical samples, Sample X (a soft ferromagnetic material) and Sample Y (a hard ferromagnetic material), are placed inside a strong external magnetic field until their magnetic domains align. The external magnetic field is then completely removed. Which sample retains a greater degree of magnetic domain alignment, and why?

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