(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A solid sphere 25cm in radius carries 14uC, distributed uniformly throughout its volume. Find the electric field strength (a.) 15cm, (b.) 25cm, (c.) 50cm from the sphere's center.

R = .25m

Q = 14 * 10^-6 C

2. Relevant equations

p = q/(volume)

E = (kq)/r^2

3. The attempt at a solution

a.) I have absolutely no idea where to even begin here. This is what I really need help with. I'm not sure if the answer relates to the other two distances, so i'll show how I got those. For some reason, E = (kq)/r^2 fails here.

b.) E = (kq)/r^2 = (9.0*10^9 Nm^2/C^2)(14*10^-6 C)/(.25m)^2 = 2.02 * 10^-6 N/C

c.) E = (kq)/r^2 = (9.0*10^9 Nm^2/C^2)(14*10^-6 C)/(.50m)^2 = 504 * 10^3 N/C

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Find the electric field strength inside a solid sphere.

**Physics Forums | Science Articles, Homework Help, Discussion**