Doubt from Electrostatics

dipole-moment
solved
sm
electrostatics
easy
#1


The correct answer is option (B).

#2

The approach should be to write the product of the position vector of each charge and the value of charge taking care of all the signs. So p = 2q(0,a,a) + (-q)(0,a,-a) + (-q)(0,0,-a)
P= (qa) j + (4qa) k
Hence 'b' is correct

Here (x,y,z) represents the coordinates

#3

#4