A magnetic needle was drawn to the steel bar. Is the rod magnetized? How to find out?

You can use the magnetic arrow to find out if the steel bar is magnetized. If the arrow deviates, then the rod is magnetized, because the compass needle reacts to the influence of a magnetic field, which means that the rod has a magnetic field. If the arrow does not deflect, then the rod has no magnetic field. those. not magnetized.

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