An electric dipole consisting of charges of magnitude 1.50 nC separated by 6.20 mm is in an electric field of strength 1100 N/C. What are (a) the magnitude of the electric dipole moment and (b) the difference between the potential energies for dipole orientations parallel and antiparallel to E

Explanation:

(a) It is known that formula for electric dipole moment is as follows.

          p = qd

             =

             =

Hence, magnitude of the electric dipole moment is .

(b) Now, formula to calculate the difference in potential energy is as follows.

                         = -pE Cos 180 + pE Cos 0

                         = 2pE

                         =

                         =

Thus, we can conclude that difference between the potential energies for dipole orientations parallel and antiparallel to E is .

28. evolution

29. environment, survive, offspring  

explanation: