ciaranoelle8151 ciaranoelle8151 21-02-2024 Physics contestada A point-charge, g, is located at the origin and has a value of -7.9×10-9 C. Point a is situated on the x-axis at x = 0.9 m. What is the magnitude of the electric field at point a? a) 87.8 N/C b) 105.4 N/C c) 123.0 N/C d) 140.6 N/C