Figure 1 below shows a metallic rod MN of length , kept in a uniform magnetic field of flux density…

Figure 1 below shows a metallic rod MN of length $l = 80\text{ cm}$, kept in a uniform magnetic field of flux density $B = 0\cdot5\text{ T}$, on two parallel metallic rails P and Q. Calculate the emf that will be induced between its two ends, when it is moved towards right with a constant velocity $v$ of $36\text{ km/hr}$.