2. A charged line of linear charge density ? has been bent into a circular arc o
ID: 2220569 • Letter: 2
Question
2. A charged line of linear charge density ? has been bent into a circular arc of radius r that makes an angle ? with its center.
a. Find the magnitude of the electric field at the center of this arc. (Does your result make sense, what should it be if the arc were increased to a full circle? How about if it were shrunk to an angle of 0?)
b. Where would a point charge of the same total charge as the arc need to be placed in order to make the electric field at the center of the arc equal to zero?
(Hint: X and Y axes have not been chosen for you, you
Explanation / Answer
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