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 $$\theta $$ with the direction of the field. Assuming that the potential energy of the dipole to be zero when $$\theta ={{90}^{0}},$$ the torque and the potential energy of the dipole will respectively be [AIPMT (S) 2012]

Question

TuteeHUB · Accepted Answer

$$pE\sin \theta ,-2\,pE\cos \theta $$

TuteeHUB · Answer

$$pE\sin \theta ,\,-pE\cos \theta $$

TuteeHUB · Answer

$$pE\sin \theta ,-2pE\cos \theta $$

TuteeHUB · Answer

$$pE\cos \theta ,-pE\sin \theta $$

1.	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 \[\theta \] with the direction of the field. Assuming that the potential energy of the dipole to be zero when \[\theta ={{90}^{0}},\] the torque and the potential energy of the dipole will respectively be [AIPMT (S) 2012]
A.	\[pE\sin \theta ,\,-pE\cos \theta \]
B.	\[pE\sin \theta ,-2\,pE\cos \theta \]
C.	\[pE\sin \theta ,-2pE\cos \theta \]
D.	\[pE\cos \theta ,-pE\sin \theta \]
Answer» B. \[pE\sin \theta ,-2\,pE\cos \theta \]

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