Two short magnetic dipoles $$m_1$$ and $$m_2$$ each having magnetic moment of 1 A m$$^2$$ are placed at point O and P respectively. The distance between OP is 1 m. The torque experienced by the magnetic dipole $$m_2$$ due to the presence of $$m_1$$ is _________ $$\times 10^{-7}$$ N m