Point `P` lies on the axis of a dipole . If the dipole is rotated by ` 90^@` anticlock wise , the electric field vectro ` vec E` at `P` will rotate by .

Point P lies on the axis of a dipole . If the dipole is rotated by 90^@ anti-clock wise , the electric field vector vec E at P will rotate by .

Point P lies on the axis of a dipole . If the dipole is rotated by 90^@ anti-clock wise , the electric field vector vec E at P will rotate by .

A short electric dipoleis placed along y-axis at the origin. The electric field vector at a point P on x-axis is vec(E ) _(1) . The dipole is rotated by ( pi)/(2) at its positin . Now, the electric field vector at point P is vec(E )_(2) . Select the correct alternative(s) :

The electric field due to an electric dipole at a distance r from its centre in axial position is E . If the dipole is rotated through an angle of 90^(@) about its perpendicular axis, the electric field at the same point will be

The electric field due to an electric dipole at a distance r from its centre in axial position is E . If the dipole is rotated through an angle of 90^(@) about its perpendicular axis, the electric field at the same point will be

A point Q lies on the perpendicular bisector of an electric dipole of dipole moment P. If the distance of Q from the dipole is r, then electric field at Q is proportional to