Problemas
2. Which of the following sentences is correct? A magnet has a positive pole and a negative pole. Opposite poles attract and like poles repel. An object whose particles are pointing in different directions has a ferromagnetic effect. An object that does not respond naturally to magnets whose molecules are grouped in pairs and cancel each other out has a diamagnetic effect.
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Laura
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The correct sentence is: "Opposite poles attract and like poles repel."Explanation:- A magnet has a north pole and a south pole, not a positive and negative pole.- Opposite poles (north and south) attract each other, while like poles (north and north or south and south) repel each other.- The ferromagnetic effect refers to the phenomenon where certain materials, such as iron, become strongly magnetized in the presence of a magnetic field. This is not related to the direction of particles.- Diamagnetic materials are those that do not respond naturally to magnets and are slightly repelled by a magnetic field. This is not related to molecules being grouped in pairs and canceling each other out.