A uniformly charged hollow sphere with a radius of 0.3 m and net electric charge of 536 nC is rotating with angular speed of 7 rad/s. The axis of rotation is indicated by the dashed line. The constant external magnetic field has a magnitude of 28 mT. What is the magnitude of dipole contribution (in nNm) to the net torque exerted on the sphere due to its interaction with the external magnetic field if 0 = 40