Figure shows a conducting rod `PQ` in contact with metal rails `RP` and `SQ`, which are `0.25 m` apart in a uniform magnetic field of flux density `0.4T` acting perpendicular to the plane of the paper. Ends `R` and `S` are connected through a `5 Omega` resistance. What is the emf when the rod moves to the right with a velocity of `5ms^(-1)` ? What is the magnitude and direction of the current through the `5 Omega` resistance? If the rod `PQ` moves to the left with the same speed, what will be the new current and its direction?