Electric field strength in metal sphere

[Janiceleong26]

1. Homework Statement

Why is there no electric field strength in a metal sphere? Is it because the sum of the individial electric field strength of the charges in the sphere is zero? How is that possible?

Homework Equations

The Attempt at a Solution

 

[cnh1995]

Induced charges on the metal sphere make it possible.

 

[Janiceleong26]

oh I see.
Thanks