- #1
shannon
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Homework Statement
There is a washer (inner radius is a and outer radius is b) on the x-y axis with a constant surface charge density σ . What is the force felt on charge q on z-axis distance D from center of washer.
Homework Equations
The Attempt at a Solution
I don't even know where to begin...
I was thinking about drawing a triangle to a random spot on the washer from the origin to the charge q...but I don't know if that will work since it's a washer.
I don't think I can pick a gaussian surface...can I?
Please give some hints!