A perfectly diamagnetic sphere has a small spherical cavity at its centre, which is filled with a paramagnetic substance. The whole system is placed in a uniform magnetic field $\overrightarrow{\mathrm{B}}$ . Then the field inside the paramagnetic substance is
Select the correct option:
A
Much large than $|\overrightarrow{\mathrm{B}}|$ and parallel to $\overrightarrow{\mathrm{B}}$
B
$$ \overrightarrow{\mathrm{B}} \mid $$
C
Much large than $|\overrightarrow{\mathrm{B}}|$ but opposite to $\overrightarrow{\mathrm{B}}$
D
Zero
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
Magnetic field inside perfectly diamagnetic material remains zero.
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