Physics Question from JEE Main 2023 · 11 April, Shift 2

A metallic cube of side $15 \, \text{cm}$ moving along $y$-axis at a uniform velocity of $2 \, \text{m s}^{-1}$. In a region of uniform magnetic field of magnitude $0.5 \, \text{T}$ 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 _____ $\text{mV}$.