Two charges Q and 4 Q are separated by a distance of 6 ~cm . The distance of the point from 4 Q at which net electric field is zero is

Step-by-step solution

Let the electric field be zero at a point P . aligned & K Q x^2 = K 4 Q (6-x)^2 ( E= K Q r^2 ) & (6-x)^2=4 x^2 6-x=2 x & x=2 ~cm aligned