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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?

a.

− 9 × 10−20 J

b.

− 7 × 10−27 J

c.

− 10 × 10−29 J

d.

− 20 × 10−18 J


Question ID - 50343 | Top Ranker Answer | SaraNextGen

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?

a.

− 9 × 10−20 J

b.

− 7 × 10−27 J

c.

− 10 × 10−29 J

d.

− 20 × 10−18 J

1 Answer - 5876 Votes

3537

Answer Key : (b) -

U = −

    = −PE cos

    = − (1029) (103) cos 45

    = −0.707 x 1026 J

    = − 7 x 1027 J.



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