In Fig. 22-50, a thin glass rod forms a semicircle of
Chapter , Problem 26(choose chapter or problem)
In Fig. 22-50, a thin glass rod forms a semicircle of radius r ! 5.00 cm. Charge is uniformly distributed along the rod, with #q ! 4.50 pC in the upper half and %q ! %4.50 pC in the lower half.What are the (a) magnitude and (b) direction (relative to the positive direction of the x axis) of the electric field at P,the center of the semicircle?
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