Electric field of multiple point-charges: Four equal negative point charges are located at the corners of a square, their positions in the xy-plane being (1, 1), (-1, 1), (-1, -1), (1, -1). The electric field on the x-axis at (1, 0) points in the same direction as
A) .
B) .
C) - .
D) .
E) - .

Question

Electric field of multiple point-charges: Four equal negative point charges are located at the corners of a square, their positions in the xy-plane being (1, 1), (-1, 1), (-1, -1), (1, -1). The electric field on the x-axis at (1, 0) points in the same direction as
A) . 
B) . 
C) - . 
D) . 
E) - .

Quizplus · Accepted Answer

The Answer of Electric field of multiple point-charges: Four equal negative point charges are located at the corners of a square, their positions in the xy-plane being (1, 1), (-1, 1), (-1, -1), (1, -1). The electric field on the x-axis at (1, 0) points in the same direction as
A) . 
B) . 
C) - . 
D) . 
E) - .

Electric Field of Multiple Point-Charges: Four Equal Negative Point Charges