A dipole with the magnitude of dipole moment 0-5 C-m is placed in an external uniform electric field of magnitude 10 N-C- p makes an angle of 60- with 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-

Potential energy is of a dipole in an external field is given by p.E U(60^∘) = 0.5 × 10 ×cos (60^∘) = 2.5J ...

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

Byju's Answer

Standard XII

Physics

Torque on a Dipole

A dipole with...

Question

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 $60^{\circ}$ with $\to E$ . 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?

- 10 J

No worries! We‘ve got your back. Try BYJU‘S free classes today!

- 5 J

No worries! We‘ve got your back. Try BYJU‘S free classes today!

z e r o

No worries! We‘ve got your back. Try BYJU‘S free classes today!

- 2.5 J

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D $- 2.5 J$
Potential energy is of a dipole in an external field is given by $- \to - p . \to E$
$U (60^{\circ}) = - 0.5 \times 10 \times cos (60^{\circ}) = - 2.5 J$

Suggest Corrections

Similar questions

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}

with

\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 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. An electric dipole of 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 the direction of the field. Assuming that the potential energy of the dipole to be zero when=

90^{0}

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

Q. An electric dipole of 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 0 with the direction of the field. Assuming that the potential energy of the dipole to be zero when

θ = 90^{0}

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

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→.

Join BYJU'S Learning Program

The correct option is D −2.5JPotential energy is of a dipole in an external field is given by −→−p.→E U(60∘)=−0.5×10×cos(60∘)=−2.5J

The correct option is D $- 2.5 J$
Potential energy is of a dipole in an external field is given by $- \to - p . \to E$
$U (60^{\circ}) = - 0.5 \times 10 \times cos (60^{\circ}) = - 2.5 J$