A small conducting spherical shell with inner radius a and outer radius b is con
ID: 2273453 • Letter: A
Question
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.
Select True or False for the following statements.
1. The radial component of the electric field in the region r > d is given by +2q/(4??0r2).
2. The radial component of the electric field in the region c < r < d is given by -2q/(4??0r2).
3. The total charge on the outer surface of the large shell is +2q.
4. The total charge on the inner surface of the large shell is +2q.
5. The total charge on the outer surface of the small shell is zero.
6. The radial component of the electric field in the region r < a is given by -2q/(4??0r2).
7. The total charge on the inner surface of the small shell is -2q.
Explanation / Answer
1) true total charge r>d = (4-2)q
2)false electric field inside conductor is 0
3)true due to induction of charges +2q
4)true due to induction
5)false
6)false total charge enclosed is 0
7)false charges tend to occupy larger surfaces