MCQ
A solid conducting sphere of radius $a$ has a net positive charge $2Q$. A conducting spherical shell of inner radius $b$ and outer radius $c$ is concentric with the solid sphere and has a net charge $-Q$. The surface charge density on the inner and outer surfaces of the spherical shell will be
- ✓$ - \frac{{2Q}}{{4\pi {b^2}}},\frac{Q}{{4\pi {c^2}}}$
- B$ - \frac{Q}{{4\pi {b^2}}},\frac{Q}{{4\pi {c^2}}}$
- C$0,\frac{Q}{{4\pi {c^2}}}$
- DNone of the above
