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An electric field of 1000 V/m is applied to an electric dipole at angle of 45°. The value of electric dipole moment is 10 –29 C.m. What is the potential energy of the electric dipole?

1. –7 × 10 –27 J
2. –9 × 10 –20 J
3. –10 × 10 –29 J
4. –20 × 10 –18 J

Correct answer: –7 × 10 –27 J

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