(7) The figure shows two arcs of a circle of radius R on which charges +Q and -Q have been spread uniformly. (a) What is the electric field at the center of the circle due to these two arcs? (b) If both arcs were positive, how would that change your answer to (a)?
(7) The figure shows two arcs of a circle of radius R on which charges +Q and -Q have been spread uniformly. (a) What is the electric field at the center of the circle due to these two arcs? (b) If both arcs were positive, how would that change your answer to (a)?
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Transcribed Image Text:(7) The figure shows two arcs of a circle of radius R on which charges +Q and
-Q have been spread uniformly.
(a) What is the electric field at the center of the circle due to these two
arcs?
(b) If both arcs were positive, how would that change your answer to
(a)?
-e
2
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