yinx
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Homework Statement
a) What is the E-field at the center of a metal ring which has uniform charge density?
b) Is E=0 for any other point within the circumference of the ring?2. The attempt at a solution
For (a), since the ring has uniform charge density and is symmetrical, based on symmetry, E-field from opposite sides "cancels" each other out therefore the E field at the center of the ring should be E=0. Am I correct?
For (b), this is the one that got me confused. I was thinking that E-field at all other points (other than the center) should be non-zero as the E-fields from opposite ends at these points are opposite in direction however not equal in magnitude. However I am not too sure about this.
Greatly appreciate if anyone can enlighten me.
-yinx-
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