In the figure a thin glass rod forms a semicircle of radius r = 3.95 cm. Charge is uniformly distributed along the rod, with +q = 2.90 pC in the upper half and -q = -2.90 pC in the lower half. What is the magnitude of the electric field at P, the center of the semicircle? Number i 15.07 +q -9 Units Р N/C or V/m

In the figure a thin glass rod forms a semicircle of radius r = 3.95 cm. Charge is uniformly distributed along the rod, with +q = 2.90 pC in the upper half and -q = -2.90 pC in the lower half. What is the magnitude of the electric field at P, the center of the semicircle? Number i 15.07 +q -9 Units Р N/C or V/m