A metallic cube of side 15 cm moving along y -axis at a uniform velocity of 2 ms^-1. In a region of uniform magnetic field of magnitude 0.5 T…

A metallic cube of side $\displaystyle 15$ cm moving along $\displaystyle y$-axis at a uniform velocity of $\displaystyle 2 \mathrm{~ms}^{-1}$. In a region of uniform magnetic field of magnitude $\displaystyle 0.5$ T directed along z -axis. In equilibrium the potential difference between the faces of higher and lower potential developed because of the motion through the field will be $\displaystyle \_\_\_\_$ mV.