Two Point Particles, with Charges of Q₁ and Q₂, Are

Multiple Choice

Two point particles, with charges of q₁ and q₂, are placed a distance r apart.The electric field is zero at a point P between the particles on the line segment connecting them.We conclude that:

A) q₁ and q₂ must have the same magnitude and sign
B) P must be midway between the particles
C) q₁ and q₂ must have the same sign but may have different magnitudes
D) q₁ and q₂ must have equal magnitudes and opposite signs
E) q₁ and q₂ must have opposite signs and may have different magnitudes