Working on the conceptual first...
The Attempt at a Solution
2a. My understand is that the electric potential inside the shell is only affected by the enclosed q? Is that correct? Because if I was to place an image charge to solve the problem, the image charge wouldn't contribute anything and since the sphere is grounded, that doesn't contribute anything either.
2b. Total induced charge would be -q to cancel out the q's e-field. Correct?
2c. Total force on the conducting shell would be zero since the shell is not moving, other wise the shell would start moving around. I'm pretty sure that's wrong...but I can't think of anything else...Unless I have to use an image charge (read 2d).
2d. I'm pretty sure this one I'll have to find the image charge for the system and compute the potential energy according to the image charge(s) that I find. But I don't know how to start off to find the image charge, any pointer?
3. I have no idea how to start this problem at all, any input is welcome.
P.S. 1st time posting on the physics forums...please don't bash me if I didn't do something right...=/
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