Charge on the Surface of a Spherical Shell with a point charge inside with

[jaguar7]

Homework Statement

A right solid conducting cylinder has a total charge of +5.10 mC. Inside the cylinder a charge q = -1.55 mC rests at the center of a hollow sphere as shown in the diagram below. What is the charge on the surface of the hollow sphere?

Homework Equations

The Attempt at a Solution

shouldn't it just be the charge of the point charge in the center? The cylinder is outside the spherical shell, so the charge doesn't effect it?

 

[SammyS]

A right solid conducting cylinder has a total charge of +5.10 mC. Inside the cylinder a charge q = -1.55 mC rests at the center of a hollow sphere as shown in the diagram below. What is the charge on the surface of the hollow sphere?

The Attempt at a Solution

shouldn't it just be the charge of the point charge in the center? The cylinder is outside the spherical shell, so the charge doesn't effect it?

It's the same except for one important detail: What is the sign of the charge on the surface of the hollow?

The total charge on the cylinder does not matter. - That's correct.

 

[cupid.callin]

is the cylinder hollow and contains a hollow sphere or the sphere you said is the shape of cavity inside the cylinder?