MCQ
The inherent property of all materials is:
- ✓Diamagnetism.
- BParamagnetism.
- CFerromagnetism.
- DBoth $a$ and $b.$
Diamagnetism $($where orbital motion of electrons creates tiny atomic current loops, which produce magnetic fields$)$ is a property of all materials and opposes applied magnetic fields, but is very weak.
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Assertion $A$: A bar magnet dropped through a metallic cylindrical pipe takes more time to come down compared to a non-magnetic bar with same geometry and mass.
Reason $R$: For the magnetic bar, Eddy currents are produced in the metallic pipe which oppose the motion of the magnetic bar.
In the light of the above statements, choose the correct answer from the options given below
