(Answered) An electric dipole consists of charges 2e and -2e separated

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An electric dipole consists of charges +2e and -2e separated by 0.78 nm. It is in an electric field of strength 3.4 x 10^6 N/C. Calculate the magnitude of the torque on the dipole when the dipole moment is

(a) parallel to
(b) perpendicular to
(c) antiparallel to the electric field.

What is the difference between potential energies for dipole orientations parallel and antiparallel to the electric field?

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