Multiple choice (show your work if any):

Question

1) Two point charges q1=-10^-5 C and q2=-9×10^-5 C are placed respectively at two points A and B 40 cm apart.   The electric field is null at a point C outside [AB] such that : 

a) AC=50cm b) AC=30cm c) AC=20cm d) point C does not exist

Answer 1

See prev post