An infinite line charge of linear density λ = 0.30 µc/m lies along the z axis and a point charge q = 6.0 µc lies on the y axis at y = 2.0 m. the electric field at the point p on the x axis at x = 4.0 m is approximately. a. (4.2 kn/c) b. (4.2 kn/c) i + (0.64 kn/c) j c. (-0.96 kn/c) j d. (2.8 kn/c) i + (0.64 kn/c) j e. (5.2 kn/c) i = (2.3 kn/c) j