Two charges Q1 = +4 nC (positive) and Q2 = -2 nC (negative) are arranged in a line. Q1 is at the origin (x-0) and Q2 is at x=4 m
. What is the electric field at the point x 1 m on the same line? Let sign of the electric field indicate the direction; positive is towards larger x and negative is towards smaller x. 38 N/C 13.5 N/C 4.5 N/C 34 N/C
