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An electric dipole with dipole moment $4 × 10−9 C\; m$ is aligned at $30^{\circ}$ with the direction of a uniform electric field of magnitude $5 × 10^4 N C^{−1}$. Calculate the magnitude of the torque acting on the dipole.

1 Answer

Hence D is the correct answer.
answered Jun 4, 2014 by meena.p