Question

The position of the point where net electric field will be zero -

• A. (1+ a) m from 4Q
• B. a/2 m from – Q
• C. 1m from 4Q
• D. Neutral point not posible

Answer 1

Answer: (A)

(1+ a) m from 4Q

Answer 2

x =$\frac { \sqrt { Q } } { \sqrt { 4 Q } - \sqrt { Q } }$

x = $\frac { 1 } { 2 - 1 }$ = 1 m