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

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

Magnetism and Matter

Solution:

Diamagnetic substances are repelled by the magnetic field. The body of the frog behaves like a diamagnetic substance, hence the smallest magnetic field placed below the body of the frog will be strong enough to lift it.