The flux is the same because the charge enclosed has not changed.
A spherical cavity is hollowed out of the interior of a neutral conducting sphere. At the center of the cavity is a point charge, of positive charge q.
What is the electric field E_ext outside the conductor?
(b) The same as the field produced by a point charge q located at the center of the sphere.
(c) The same as the field produced by a point charge located at the position of the charge in the cavity.
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Gauss' Law concept. You can view video lessons to learn Gauss' Law. Or if you need more Gauss' Law practice, you can also practice Gauss' Law practice problems.