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प्रश्न
Which of the following pairs is that of paramagnetic materials?
विकल्प
Copper and Aluminium
Sodium and Calcium
Lead and Iron
Nickel and Cobalt
MCQ
उत्तर
Sodium and Calcium
Explanation:
Paramagnetic materials are weakly attracted to external magnetic fields. When a magnet is placed near these materials, they will weakly magnetise towards it. Sodium and calcium are paramagnetic materials.
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