An electric dipole consists of Q=330nC separated by a distance of 1200nm. The dipole is initially oriented in -i direction. The dipole is in a uniform external electric field of E= 2500 i N/C Determind the following.
a) the magnitude of the torque on the dipole when it is at +67 degrees relative to the positive y-axis
b) the work done by the lectric field to rotate the dipole to an angle of 67 degrees relative to the y-axis