Two equal positive point charges +Q are fixed 6 cm apart on a straight line
PHYSICS · Single correct · AP · Physics 2: Algebra-based · Electric Force Field and Potential · Electric Force Field and Potential
Problem
Two equal positive point charges +Q are fixed 6 cm apart on a straight line. At which one of the following positions along the same line will the resultant electric field be zero (excluding infinity)?
(a) Exactly at the mid-point of the two charges
(b) At a point on the line to the right of the right charge
(c) At a point between the charges, 2 cm from the left charge
(d) No finite point on the line – the fields can never cancel