Question

The two charges $+Q$ and $-4Q$ are kept at some distance on the scale. The points $A$ to $E$ are marked as shown in figure. At which point does the net electric field vector point to the left?

• A. A
• B. B
• C. C
• D. D
• E. E

Answer 1

The correct option is E E

Even though the electric field at point E due to +Q points to the right, +Q is very far away, and -4 Q applies a greater force to a charge placed at E. Therefore, the electric field due to -4 Q points to the left at E.