# Enginering Electromagnetics help

## Homework Statement

The charge density throughout a region is give by pv=10e^-3r{uC/m^3}, where r is measeure in meters. Find the total charge Q contained in a sphere center about the origin that has a radius of meters.

Where e = -1.60210X10^-19

## Homework Equations

e = -1.60210X10^-19
volume of a sphere = 4/3¶r^3

## The Attempt at a Solution

didnt know where to start

Related Engineering and Comp Sci Homework Help News on Phys.org
The following should help.

Regards,

Nacer.

http://islam.moved.in/tmp/page4.jpg [Broken]

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Yeah, I figured out that part i just have trouble integrating the problem. I get some huge number when I do that. But I do appreciate you showing me that but, if you could can you show me how its worked out. The answer is 8.73microCoulombs. Thanks again

There an attachment of a sample problem like the one im doing either way i still cant get the right answer.

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