(Solved): please help to explain part ii) how to determine the direction? please help with detailed explanatio ...

please help to explain part ii) how to determine the direction? please help with detailed explanation. thanks. 

(b) A metal rod is pulled with a constant velocity v along two parallel metal rails connected with a metal strip at one end, as shown in Figure 5. A uniform magnetic field of magnitude B = 1.5 T is directed out of the page. B Figure 5 ? ? ? (i) If the rails are separated by L = 60.0 cm and the speed of the rod is 45.0 cm/s, what is the magnitude of the emf generated in the circuit formed by the metal rod, metal rails and the metal strip? (ii) If the metal rod has a resistance of 18.0 2 and the metal rails and the metal strip have negligible resistance, what is the magnitude and direction (clockwise or counterclockwise) of the current induced in the circuit? Explain your answer. (iii) Determine the mechanical power that is required to pull the rod at the constant speed of 45.0 cm/s.