The ratio of electric fields on the axis and at the equator of an electric dipole is

An electric dipole in a uniform electric field experiences (when it is placed at an angle $\theta$ with the field):

Two ideal electric dipoles $A$ and $B$ having dipole moments $p_{1}$ and $p_{2}$ respectively are placed on a plane with their centers at $O$ as shown in the figure. At point $C$ on the axis of dipole $A$,the resultant electric field makes an angle of $37^{\circ}$ with the axis. The ratio of the dipole moments of $A$ and $B$,$\frac{p_{1}}{p_{2}}$ is $....$ (take $\sin 37^{\circ}=\frac{3}{5}$)

An electric dipole is kept in a non-uniform electric field. It experiences

$A$ dipole is placed in an electric field as shown. In which direction will it move?

Consider two charges $+q$ and $-q$ $(q > 0)$ placed at a distance $2a$ from each other. At the point $M$ (see figure below),the electric field makes an angle $\phi$ with the $x$-axis. The correct value of $\phi$ is (in $^{\circ}$)