JEE Mains · Physics · STD 12 - Magnetism and matter
- JEE Mains 2020
- Medium
- MCQ
A perfectly dimagnetic 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 \(\overrightarrow{ B }\). Then the field inside the paramagnetic substance is:
Pick an option to check your answer.
Answer & Solution
Correct Answer
(A) \(Zero\)
Step-by-step Solution
Detailed explanation
A perfect diamagnetic substance will completely expel the magnetic field. Therefore, there will be no magnetic field inside the cavity of sphere. Hence the paramagnetic substance kept inside the cavity will experience no force.
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