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An electric field of 1000 V//m is applie...

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

`-10 xx 10^(-29) J`

B

`-7 xx 10 ^(-27) J `

C

`-20 xx 10 ^(-18)J`

D

`-9 xx 10^(-20) J `

Text Solution

Verified by Experts

The correct Answer is:
B
`U =- vecp. vecE`
`U=-10 ^(-29) xx 1000xx (1)/( sqrt2) or U =-7 xx 10 ^(-27) g`
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