Consider two long, isolated, concentric, conducting cylinders. The inner conduct
ID: 2002596 • Letter: C
Question
Consider two long, isolated, concentric, conducting cylinders. The inner conductor has a net charge of 9 q . The outer conductor has a net charge of 9 q . Since the two cylinders are conductors, the charge flows to the surfaces of the cylinders. The charge on the surface of the sphere is Q1, on the inner surface of the shell is Q2 and on the outer surface Q3.
Which choice best represents the charge distribution in electrostatic equilibrium?
1. Q1 = 9 q Q2 = 9 q Q3 = 15 q
2. Q1 = 8 q Q2 = 8 q Q3 = 11 q
3. Q1 = 8 q Q2 = 8 q Q3 = 17 q
4. Q1 = 9 q Q2 = 9 q Q3 = 0 q
5. Q1 = 4 q Q2 = 4 q Q3 = 1 q
6. Q1 = 3 q Q2 = 3 q Q3 = 5 q
7. Q1 = 9 q Q2 = 9 q Q3 = 6 q
8. Q1 = 6 q Q2 = 6 q Q3 = 15 q
9. Q1 = 5 q Q2 = 5 q Q3 = 10 q
10. Q1 = 5 q Q2 = 5 q Q3 = 4 q
Explanation / Answer
4. Q1 = 9 q Q2 = 9 q Q3 = 0 q
As The inner conductor has a net charge of 9 q so The charge on the surface of the sphere Q1 = -9q
This charge will induce +9q on the inner surface of the shell, Q2 = +9q
And The outer conductor has a net charge of 9 q, so charge on the outer surface, Q3 =0.