# Electric field inside a solid conducting sphere carrying charge q.

theBEAST

## Homework Statement

A solid conducting sphere carrying charge q has radius a. What is the electric field when r<a.

EA=Qenclosedo

## The Attempt at a Solution

I found it using gauss law where Q=density*V. I ended up with qr/(4pi*a3o)

HOWEVER, my friend told me it should be E=0 and we are unsure which one is the right answer. The method I used assumes that the charge is uniformly distributed throughout the volume of the sphere.

Also, I believe that E=0 only when you have a hollow sphere with no charge inside. In this question, it is a SOLID sphere.

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## Homework Statement

A solid conducting sphere carrying charge q has radius a. What is the electric field when r<a.

EA=Qenclosedo

## The Attempt at a Solution

I found it using gauss law where Q=density*V. I ended up with qr/(4pi*a3o)

HOWEVER, my friend told me it should be E=0 and we are unsure which one is the right answer. The method I used assumes that the charge is uniformly distributed throughout the volume of the sphere.

Also, I believe that E=0 only when you have a hollow sphere with no charge inside. In this question, it is a SOLID sphere.
What do you know about conductors?

What do you know about like charges?

theBEAST
What do you know about conductors?

What do you know about like charges?

thanks figured it out :)