In a certain region of space, electric field is along the z-direction throughout. The magnitude of electric field is, however, not constant but increases uniformly along the positive z-direction, at the rate of 105 NC- per metre. What are the force and torque experienced by a system having a total dipole moment equal to 10 -7 Cm in the negative z-direction

In a certain region of space, electric field is along the z-direction throughout. The magnitude of electric field is, however, not constant but increases uniformly along the positive z-direction, at the rate of 105 NC- per metre. What are the force and torque experienced by a system having a total dipole moment equal to 10 -7 Cm in the negative z-direction