How to calculate potential of a semicircular ring?
Ammustic007:
Potential along which dimension or parameter of the semi-circular ring?
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Say you take a thin flexible rod with charge Q, bend it into a semicircle (half circle going from pi/2 to 3pi/2) with radius R. Find an expression for the electric potential at the center of that semicircle. I know that this has something to do with finding the electric field at the center point and then taking the negative integral to find electric potential.... but i'm not even sure how to start.
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