Question

derive an expression for the torque acting om electric dipole placed in an uniform external electric field ​

Answer 1

Answer:

Let inside the uniform magnet field the electric dipole is placed. ... A couple rotate the dipole during to the equal and opposite force on the points of action. The torque(T) of the dipole is (qE×2dsinθ where d is the length of the dipole and θ is angle between the dipole and the direction of the field.