An electric dipole with dipole moment $5 imes 10^{-6}$ Cm is aligned with the direction of a uniform electric field of magnitude $4 imes 10^5$ N/C. The dipole is then rotated through an angle of $60^\circ$ with respect to the electric field. The change in the potential energy of the dipole is:

Question

An electric dipole with dipole moment $5 	imes 10^{-6}$ Cm is aligned with the direction of a uniform electric field of magnitude $4 	imes 10^5$ N/C. The dipole is then rotated through an angle of $60^\circ$ with respect to the electric field. The change in the potential energy of the dipole is:

Dr. Abubacker · Accepted Answer

[Solution by Claude - not from source] $\Delta U=pE(\cos0^\circ-\cos60^\circ)=5	imes10^{-6}	imes4	imes10^5	imes\frac12=1.0$ J. Answer (2).

Explanation

Reviewed by Dr. Abubacker

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