-A Point Charge Q = -12 μC,and Two Other Charges,q₁

Multiple Choice

-A point charge Q = -12 μC,and two other charges,q₁ and q₂,are placed as shown.The electric force components on charge Q are F_x = +0.005 N and F_y = -0.003 N.In the figure,the number of excess electrons in charge Q is closest to:

A) 5.5 × 10¹³
B) 6.5 × 10¹³
C) 7.5 × 10¹³
D) 8.5 × 10¹³
E) 9.5 × 10¹³