Electric dipole of moment is kept at a point in an electric field

PHYSICS · Single correct · CBSE · Physics · Electric Charges and Fields · Electric Charges and Fields

Problem

Electric dipole of moment

\vec{p} = p\hat{i}

is kept at a point

(x, y)

in an electric field

\vec{E} = 4xy^2\hat{i} + 4x^2y\hat{j}

. Find the force on the dipole. (1)

4py^2

(2)

4py(y^2 + 2x^2)^{1/2}

(3)

4py^2 + 8pxy

(4)

4py(y^2 + 4x^2)^{1/2}