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Question

If the liquid in a U - tube rises to high level in the limb placed between poles of an electromagnet, then the liquid is:

A
non - magnetic
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B
diamagnetic
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C
paramagnetic
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D
ferromagnetic
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Solution

The correct option is C paramagnetic
Since paramagnetic materials experience force in a magnetic field, the liquid rises between the poles of electromagnet. Ferromagnetic substance also experiences force in magnetic field, but liquid can not be ferromagnetic.

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