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Introductory Physics Homework Help
What is the charge density on the insulator?
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[QUOTE="Luke0034, post: 5697577, member: 607269"] [h2]Homework Statement [/h2] Insulator has a 3 cm radius and is a sphere. It has a total charge of -4.2 uC. I need to find the charge density of the insulator. [h2]Homework Equations[/h2] sigma = total charge / volume... I think? [h2]The Attempt at a Solution[/h2] After using the above equation, I got -3.714E-8 C/m I am just not sure if this is the correct charge density for the insulator. I know that for conductors, I think the equation would be charge/area, but I think since an insulator contains the charge throughout the sphere and not just on the surface, you'd have to use volume correct? I am correct in my answer and thinking? [/QUOTE]
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Introductory Physics Homework Help
What is the charge density on the insulator?
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