A rod of length 12 meters and charge.6 mC is bent into a semicircle. The linear charge density given by 1 = kx4. Find the magnitude of the Electric field it creates at the center of the circle.
a.66.8 kN/C b.44.5 kN/C c.103.6 kN/C d. 81.4 kN/C e.92.7 kN/C
