xg 3) A non-conducting rod is bent into a semicircle of radius r. A charge +q...

 

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xg 3) A non-conducting rod is bent into a semicircle of radius r. A charge +q is uniformly distributed along the upper half, and a charge -q is uniformly distributed along the lower half. The charges are fixed in place. Find the magnitude and direction of the electric field at P, the center of the semicircle. xg 3) A non-conducting rod is bent into a semicircle of radius r. A charge +q is uniformly distributed along the upper half, and a charge -q is uniformly distributed along the lower half. The charges are fixed in place. Find the magnitude and direction of the electric field at P, the center of the semicircle.