- #1
Seraph404
- 64
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Homework Statement
This is a http://session.masteringphysics.com/problemAsset/1003223/45/14677_a.jpg" of the problem
-I know that the direction of the electric field at any point on the z-axis is parallel to the z-axis
E = k*q/r^2
http://session.masteringphysics.com/problemAsset/1003223/45/1003223B2.jpg"
dE = k* dq/(a^2+z^2)
dEz = (z/(sqrt(a^2+z^2)) *dE
The Attempt at a Solution
So, I need to find the magnitude of the electric field along the positive z axis.
Basically, everything up there was work from previous parts of the problem. Now, I think I just need to put the last two expressions together in order to integrate around the ring (I think with respect to q), but I'm not sure. I need a little help on this last step.
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