Question

# A small conducting spherical shell with inner radius a and outer radius b is concentric with...

A small conducting spherical shell with inner radius a and outer radius b is concentric with a larger conducting spherical shell with inner radius c and outer radius d. The inner shell has a total charge of -2q and the outer shell has a total charge of +4q

.

Statement 1:- The total charge on the inner surface of the small shell is -2q : False

Statement 2:-The radial component of the electric field in the region r > d is given by +4q/(4πε0r2): False because

total charge inside the Gaussian surface.

3. The total charge on the outer surface of the small shell is -6q. False

4. The radial component of the electric field in the region c < r < d is given by -2q/(4πε0r2). False

Because electric field inside a conductor is zero.

5. The total charge on the inner surface of the large shell is -6q. True
6. The total charge on the outer surface of the large shell is +2q. True
7. The radial component of the electric field in the region r < a is given by -2q/(4πε0r2). False

No charge is enclosed inside the Gaussian surface is zero.

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