Question

 If q1 = 3.0 nC, q2 = -4.0 nC, q3 = 2.0 nC, and q4 = -5.0 nC, what is the electric field at a point halfway between q2 and q3?​

Answer 1

Explanation:

q1 and q2 are positive: ... q2 and q3 are positive: ... The electric field at the center of the square is the vector sum of the electric field at ... At the point exactly halfway between the charges, ...