What is magnitude of electric field-center of semicircle

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In the figure, a thin glass rod forms a semicircle of radius r = 2.00 cm. Charge is uniformly distributed along the rod, by +q = 3.50 pC in the upper half and -q =-3.50 pC in the lower half.

1) What is the magnitude of the electric field at P, the center of the semicircle?

 

2) What is its direction?

Reference no: EM13659401

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