Physics - Current Electricity Question with Solution | TestHub
The space between two concentric conductor spherical shells of radii and , is filled with two types of media. The dielectric constant and the conductivity of medium- 1 and medium- 2 are and , respectively. The voltage between the two shells is V.
In Case-A, the media form two concentric shells with the conductor shells, and the radius of the boundary between the two media is R2.
In Case-B, medium-1 fills the upper hemisphere and medium-2 fills the other half.
Options:(select one or more)
Answer:
Solution:
The current is radial: ; define the Case B factor .
(A) Case A (layers in series): , giving - correct.
(B) Interface charge: - the option misses the factor - incorrect.
(C) Case B (halves in parallel):
- correct.
(D) Free charge on the upper half of the inner shell: - correct.
Correct options: A, C, D
