An electric dipole with dipole moment `4 xx 10^(-9)C-m` is aligned at 30° with the direction of a uniform electric field of magnitude `5 xx 10^4` N/C. Calculate the magnitude of the torque acting on the dipole.
Options:
(a) `10^(-4) N-m`
(b) `4 xx 10^(-4) N-m`
(c) `10^(-5) N-m`
(d) `10 xx10^(-4) N-m`