A +15-NC Point Charge Is Placed on the X Axis

Multiple Choice

A +15-nC point charge is placed on the x axis at x = 1.5 m, and a −20-nC charge is placed on the y axis at y = −2.0m. What is the magnitude of the electric field at the origin?

A) 105 N/C
B) 15 N/C
C) 75 N/C
D) 45 N/C
E) 60 N/C