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
`-20xx 10 ^(-18)J`
B
`-7 xx 10^(-27)J`
C
`-10 xx 10^(29)J`
D
`-9 xx 10^(-20)J`
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