The figure shows an equilateral triangle ABC. A positive point charge + is located at each of the three vertices A, B, a
Posted: Fri May 20, 2022 10:03 pm
The figure shows an equilateral triangle ABC. A positive point charge + is located at each of the three vertices A, B, and C. Each side of the triangle is of length a. A point charge Q (that may be positive or negative) is placed at the mid-point between B and C. A 9 a a 4 9 BO 9 a/2 с al2 Reference: Ref 18-1 Determine an expression for the magnitude and sign of Q so that the net force on the charge at A is zero newtons. O 3.3 Q=- 43 Q=-9 9 =+ਬੜੇ Q 3 413 Q=+ 315 4