Electric Field Inside a Conducting Sphere: Is it Always Zero?

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Homework Statement
What is the electric field inside sphere with negative charges distributed on the sphere.
Relevant Equations
no eqns
Is the electric field inside a sphere always 0? Even if we have charges on the surface?
 
Attachments
  • Multiple-choice quiz question: inside a copper sphere the electric field is initially zero; after distributing a negative charge on the sphere, the field inside will be (A) null, (B) null only in the center, (C) negative, (D) positive but decreasing towards the center, or (E) positive. A highlighted box gives the correct answer as null.
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Discussion

This is a homework question. What is your thinking about the choices you have? The fact that this sphere is conducting is important to the answer.
 

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