CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Scalars and the Need for Vectors

An electric d...

Question

An electric dipole when placed in an uniform electric field E will have minimum potential energy, when the angle made by dipole moment with field E is

Open in App

Solution

Dear Student,

$U (θ) = - \bar{P} . \bar{E} = - P E \cos θ t h e m i n i m u m p o t e n t i a l e n e r g y i s z e r o s o a t θ = 90^{o} \cos θ = 0 t h e r e f o r e w h e n f i e l d a n d d i p o l e m o m e n t f o r m a n g l e o f 90 t h e n p o t e n t i a l e n e r g y i s z e r o . R e g a r d s$

Suggest Corrections

thumbs-up

1

Similar questions

An electric dipole when placed in a uniform electric field will have minimum potential energy, if the angle between dipole moment and electric field is

An electric dipole when placed in a uniform electric field E→ will have minimum potential energy, if the positive direction of the dipole make an angle of _____ rad with E→.

Q. An electrical dipole of dipole moment

^{'} p^{'}

is placed in an electric field of intensity

^{'} E^{'}

. The dipole acquires a position such that the axis of the dipole makes an angle

θ

with electric field. Assuming that the potential energy of the dipole to be zero when

θ = 90^{\circ}

, the torque on dipole and the potential energy of the dipole will be respectively

Q. A dipole with the magnitude of dipole moment 0.5 C-m is placed in an external uniform electric field of magnitude

10 \frac{N}{C}

\to p

makes an angle of

60^{\circ}

\to E

. What is the potential energy of the dipole in the current configuration provided that the potential energy is taken zero when dipole is perpendicular to the applied field?

Q. An electric dipole of diploe moment

\to p

placed in uniform electric field

\to E

has maximum potential energy when angle between

\to p

\to E

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Vector Intuition

PHYSICS

Watch in App

explore_more_icon

Explore more

Scalars and the Need for Vectors

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon