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A frog can be levitated in magnetic fiel...

A frog can be levitated in magnetic field produced by a current in a vertical solenoid placed below the frog . The is possible because the body of the frog behaves as

A

Paramagnetic

B

Diamagnetic

C

Ferromagnetic

D

Antiferromagnetic

Text Solution

Verified by Experts

The correct Answer is:
A
In the presence of an external magnetic field, the atomic dipoles of paramagnetic substances are aligned along the field . The material gets magnetised and it produced an extra magnetic field in the material in the direction of the field . So for paramagnetic materials, the resultant field is greater than the applied field. As the body of a frog behaves like a paramagnetic substance, the smallest magnetic field on the body of the frog will be strong enough to lift it up
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